Apiwan Nuangpolmak. (2019) Designing a Professional Development Program for English Teachers: Insights from the Lower Mekong Initiative. <i>Rangsit Journal of Educational Studies</i>, <i>6</i>(2), 55-67.Apiwan Nuangpolmak. "Designing a Professional Development Program for English Teachers: Insights from the Lower Mekong Initiative". Rangsit Journal of Educational Studies 6 (2019):55-67.Apiwan Nuangpolmak. Designing a Professional Development Program for English Teachers: Insights from the Lower Mekong Initiative. Faculty of Education, Rangsit University:ม.ป.ท. 2019.