Wilaiwan Wongjinda และ Totsapon Srisumoungklounggoon;Wanich Nilnont;Sutida PhitakwinaiNarttaya Charoensuk. (2023) The Development of Learning Package on Mechanics of Materials for Mechanical Engineering Students. <i>Interdisciplinary Academic and Research Journal</i>, <i>3</i>(5), 49-62.Wilaiwan Wongjinda และ Totsapon Srisumoungklounggoon;Wanich Nilnont;Sutida PhitakwinaiNarttaya Charoensuk. "The Development of Learning Package on Mechanics of Materials for Mechanical Engineering Students". Interdisciplinary Academic and Research Journal 3 (2023):49-62.Wilaiwan Wongjinda และ Totsapon Srisumoungklounggoon;Wanich Nilnont;Sutida PhitakwinaiNarttaya Charoensuk. The Development of Learning Package on Mechanics of Materials for Mechanical Engineering Students. DR.KEN Institute of Academic Development and Promotion.:ม.ป.ท. 2023.