Tuan, Bui Anh, Michael McAleer, Nguyen Thi Tieu Dang, and Kim-Hung Pho. “Developing Formulas for Quick Calculation of Polyhedron Volume in Spatial Geometry: Application to Vietnam”. Journal of Reviews on Global Economics 8 (October 9, 2019): 815–837. Accessed November 22, 2024. https://mail.lifescienceglobal.com/pms/index.php/jrge/article/view/6172.