diff --git a/books/free-programming-books-id.md b/books/free-programming-books-id.md
index ef683abd5..55be4f8c3 100644
--- a/books/free-programming-books-id.md
+++ b/books/free-programming-books-id.md
@@ -54,7 +54,6 @@
 
 * [Codeigniter - Pendekatan Praktis](https://leanpub.com/codeigniter-pendekatanpraktis) - Ibnu Daqiqil Id (HTML, PDF, EPUB, Kindle) *(Membutuhkan akun Leanpub atau email yang valid)*
 * [Codeigniter Untuk Pemula](https://repository.bsi.ac.id/index.php/unduh/item/176695/Tutorial-Codeigniter-Untuk-Pemula.pdf) - M Fikri Setiadi (PDF)
-* [Framework Codeigniter – Sebuah Panduan dan Best Practice](https://ibnu.daqiqil.id/buku-codeigniter/) - Ibnu Daqiqil Id, M.Ti (PDF)
 * [Panduan Pengguna CodeIgniter Indonesia](https://codeigniter-id.github.io/user-guide/) - CodeIgniter Indonesia
 * [Tutorial CodeIgniter 3 & 4](https://www.petanikode.com/tutorial/codeigniter/) *(Dalam Proses)*
 * [Tutorial CodeIgniter 4](http://mfikri.com/artikel/tutorial-codeigniter4)