diff --git a/books/free-programming-books-id.md b/books/free-programming-books-id.md
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@@ -103,6 +103,7 @@
 
 ### Java
 
+* [Algoritma dan Struktur Data dengan Java oleh Polinema SIB](https://polinema.gitbook.io/jti-modul-praktikum-algoritma-dan-struktur-data/) - Politeknik Negeri Malang
 * [Java Desktop](https://github.com/ifnu/buku-java-desktop/raw/master/java-desktop-ifnu-bima.pdf) - Ifnu Bima (PDF)
 * [Memulai Java Enterprise dengan Spring Boot](https://raw.githubusercontent.com/teten-nugraha/free-ebook-springboot-basic/master/Memulai%20Java%20Enterprise%20dengan%20Spring%20Boot.pdf) - Teten Nugraha (PDF)
 * [Pemrograman Java](https://blog.rosihanari.net/download-tutorial-java-se-gratis/) - Rosihan Ari Yuana