VONGVIZAY, Pathom, Bounchan VONGTONGKHAM, and Manivan MINGKEO. “Design of Experimental Series on the Free Fall of Object: https://doi.Org/10.69692/SUJMRD0802236”. Souphanouvong University Journal Multidisciplinary Research and Development 8, no. 2 (December 5, 2022): 236–243. Accessed January 17, 2026. http://www.su-journal.com/index.php/su/article/view/222.