Nggolaon, Delpina, and Stevi Silahooy. “Analisis Percepatan Gravitasi Pada Gerak Jatuh Bebas Menggunakan Aplikasi Video Tracker”. Physikos: Journal of Physics and Physics Education 2, no. 2 (December 7, 2023): 79-86. Accessed January 5, 2025. https://ojs3.unpatti.ac.id/index.php/physikos/article/view/10937.