“Optimalisasi Pembelajaran Sistem Kendali Jurusan Fisika Universitas Sam Ratulangi Melalui E-Book Interaktif”. J-Act (Journal of Community Action and Empowerment), vol. 1, no. 1, Aug. 2025, pp. 1-9, https://digitechminahasa.com/ojs/j-act/index.php/home/article/view/1.