Gunawan, Alexander A.S. “Solusi Deret Pangkat Tetap Dengan Fungsi Pembangkit”. ComTech: Computer, Mathematics and Engineering Applications 1, no. 2 (December 1, 2010): 522–527. Accessed July 13, 2025. https://journal.binus.ac.id/index.php/comtech/article/view/2409.