Bayu Bambang Nur Fauzi, Arvial Ilham Fahrul Syah, Fajar Cahya Ramadhan, Muhammad Hisan Mubarok. Theoretical Studies as the Foundation for Formulating Research Hypotheses. bibliotheca [Internet]. 2026 Jan. 19 [cited 2026 Mar. 4];2(1):14-20. Available from: https://bibliotheca.hellowpustaka.id/index.php/i/article/view/51