Pannipa Fongchan และ Songchai Ugsonkid;Tongta Somjaipeng. (2023) A Study of Prathomsuksa 5 Students’ Mathematical Problem-Solving Ability on Percentage Word Problem by Using Online Active Learning. <i>Interdisciplinary Academic and Research Journal</i>, <i>3</i>(5), 375-388.Pannipa Fongchan และ Songchai Ugsonkid;Tongta Somjaipeng. "A Study of Prathomsuksa 5 Students’ Mathematical Problem-Solving Ability on Percentage Word Problem by Using Online Active Learning". Interdisciplinary Academic and Research Journal 3 (2023):375-388.Pannipa Fongchan และ Songchai Ugsonkid;Tongta Somjaipeng. A Study of Prathomsuksa 5 Students’ Mathematical Problem-Solving Ability on Percentage Word Problem by Using Online Active Learning. DR.KEN Institute of Academic Development and Promotion.:ม.ป.ท. 2023.