Masini Kaswamili และ Kitikorn Dowpiset. (2026) Designing a PLC to Improve Teaching Effectiveness at St. Gabriel College: Case Study of the Teachers in the English Program. <i>International Research E-Journal on Business and Economics</i>, <i>9</i>(1), 49-67.Masini Kaswamili และ Kitikorn Dowpiset. "Designing a PLC to Improve Teaching Effectiveness at St. Gabriel College: Case Study of the Teachers in the English Program". International Research E-Journal on Business and Economics 9 (2026):49-67.Masini Kaswamili และ Kitikorn Dowpiset. Designing a PLC to Improve Teaching Effectiveness at St. Gabriel College: Case Study of the Teachers in the English Program. GSBATM-Assumption University Press:ม.ป.ท. 2026.