“Analisis Pengaruh Ampas Sagu Dalam Lost Circulation Material Pada Semen Grade G”. Jurnal Teknik AMATA 5, no. 1 (June 27, 2024): 39–45. Accessed February 7, 2026. https://www.jurnalpoltekam.or.id/index.php/Amata_amamapare/article/view/226.