Fredianto, Heri. “Optimalisasi Perangkat Lunak Menggunakan Metode Refactoring”. Jurnal Syntax Admiration 2, no. 10 (October 21, 2021): 1885-1902. Accessed May 5, 2024. https://jurnalsyntaxadmiration.com/index.php/jurnal/article/view/326.