سيو ب, الركاد ح, سعد م. Preparation of Biodiesel from Waste Vegetable Oils Using Waste Eggshells as a Heterogeneous Catalyst. TUJ-BA [Internet]. 2022Mar.31 [cited 2024May3];44(1):113-30. Available from: https://journal.tishreen.edu.sy/index.php/bassnc/article/view/12091