Helfy Susilawati, dan Tri Arif Wiharso. “Perancangan Aplikasi Kalkulator S-Parameter Berbasis Android”. Jurnal Algoritma 16, no. 2 (Desember 8, 2019): 120–129. Diakses April 8, 2025. https://jurnal.itg.ac.id/index.php/algoritma/article/view/602.