Permana, Aang Panji, Subagyo Pramumijoyo, Akmaluddin, and Didit H.Barianto. “Planktonic Foraminiferal Biostratigraphy of the Limboto Limestone, Gorontalo Province, Indonesia”. Kuwait Journal of Science 48, no. 1 (December 23, 2020). Accessed May 6, 2026. https://journals.ku.edu.kw/kjs/index.php/KJS/article/view/6916.