diff --git a/app/src/main/java/com/example/notebook/MainActivity.kt b/app/src/main/java/com/example/notebook/MainActivity.kt
index 9450b58..d12da38 100644
--- a/app/src/main/java/com/example/notebook/MainActivity.kt
+++ b/app/src/main/java/com/example/notebook/MainActivity.kt
@@ -64,12 +64,21 @@ fun NotebookApp(viewModel: NotebookViewModel) {
     var chatInput by remember { mutableStateOf("") }
     var selectedNotebookId by remember { mutableIntStateOf(-1) }
 
+    // Log setiap kali selectedNotebookId berubah
+    LaunchedEffect(selectedNotebookId) {
+        println("🎯 selectedNotebookId berubah menjadi: $selectedNotebookId")
+    }
+
     // Kalau ada notebook yang dipilih, tampilkan detail screen
     if (selectedNotebookId != -1) {
+        println("✨ Menampilkan NotebookDetailScreen untuk ID: $selectedNotebookId")
         com.example.notebook.ui.screens.NotebookDetailScreen(
             viewModel = viewModel,
             notebookId = selectedNotebookId,
-            onBack = { selectedNotebookId = -1 }
+            onBack = {
+                println("⬅️ Kembali dari detail screen")
+                selectedNotebookId = -1
+            }
         )
         return
     }
@@ -258,14 +267,13 @@ fun NotebookCard(
     val dateFormat = SimpleDateFormat("dd MMM yyyy, HH:mm", Locale.getDefault())
 
     Card(
-        modifier = Modifier
-            .fillMaxWidth()
-            .clickable {
-                println("🔵 Notebook diklik: ID=${notebook.id}, Title=${notebook.title}")
-                onClick()
-            },
+        modifier = Modifier.fillMaxWidth(),
         shape = RoundedCornerShape(12.dp),
-        colors = CardDefaults.cardColors(containerColor = Color(0xFFF8F9FA))
+        colors = CardDefaults.cardColors(containerColor = Color(0xFFF8F9FA)),
+        onClick = {
+            println("🔵 Card onClick: ID=${notebook.id}, Title=${notebook.title}")
+            onClick()
+        }
     ) {
         Row(
             modifier = Modifier
diff --git a/app/src/main/java/com/example/notebook/ui/screen/NotebookDetailScreen.kt b/app/src/main/java/com/example/notebook/ui/screen/NotebookDetailScreen.kt
index ca16f13..7fe1710 100644
--- a/app/src/main/java/com/example/notebook/ui/screen/NotebookDetailScreen.kt
+++ b/app/src/main/java/com/example/notebook/ui/screen/NotebookDetailScreen.kt
@@ -60,9 +60,19 @@ fun NotebookDetailScreen(
 
     // Load notebook data
     LaunchedEffect(notebookId) {
+        println("🚀 NotebookDetailScreen: LaunchedEffect triggered untuk ID: $notebookId")
         viewModel.selectNotebook(notebookId)
     }
 
+    // Debug log untuk state changes
+    LaunchedEffect(notebook) {
+        println("📝 Notebook state updated: ${notebook?.title ?: "NULL"}")
+    }
+
+    LaunchedEffect(sources) {
+        println("📚 Sources updated: ${sources.size} items")
+    }
+
     Scaffold(
         topBar = {
             TopAppBar(
diff --git a/app/src/main/java/com/example/notebook/viewmodel/NotebookViewModel.kt b/app/src/main/java/com/example/notebook/viewmodel/NotebookViewModel.kt
index e4d7075..f26aa7d 100644
--- a/app/src/main/java/com/example/notebook/viewmodel/NotebookViewModel.kt
+++ b/app/src/main/java/com/example/notebook/viewmodel/NotebookViewModel.kt
@@ -82,11 +82,15 @@ class NotebookViewModel(application: Application) : AndroidViewModel(application
      * Pilih notebook untuk dibuka
      */
     fun selectNotebook(notebookId: Int) {
+        println("📂 selectNotebook dipanggil dengan ID: $notebookId")
         viewModelScope.launch {
             repository.getNotebookById(notebookId).collect { notebook ->
+                println("📖 Notebook data: ${notebook?.title ?: "NULL"}")
                 _currentNotebook.value = notebook
                 notebook?.let {
+                    println("📦 Loading sources untuk notebook ID: $notebookId")
                     loadSources(notebookId)
+                    println("💬 Loading chat history untuk notebook ID: $notebookId")
                     loadChatHistory(notebookId)
                 }
             }