Optimalisasi Pembelajaran Sistem Kendali Jurusan Fisika Universitas Sam Ratulangi Melalui E-Book Interaktif. JACT [Internet]. 2025 Aug. 5 [cited 2026 Jun. 10];1(1):1-9. Available from: https://digitechminahasa.com/ojs/j-act/index.php/home/article/view/1