Teerapattanapong, Sunthorn. 2021. “The Effectiveness of Using Single Port Laparoscopic Appendectomy Versus Single Incision Multiport Laparoscopic Appendectomy”. Journal of The Department of Medical Services 46 (1):17-23. https://he02.tci-thaijo.org/index.php/JDMS/article/view/251638.