Efendi, Nur, and Septi Budi Sartika. “Buku Ajar Filsafat Sains”. Umsida Press (November 5, 2021): 1-110. Accessed February 1, 2023. https://press.umsida.ac.id/index.php/umsidapress/article/view/978-623-6292-30-3.