Wisitchai-ngam, A., & Khuankhong, C. (2018). Will Power of Volunteer from Intention to Build Love, Faith and to Band Unity. Mahachula Academic Journal, 5(ฉบับพิเศษ), 162–175. Retrieved from https://so04.tci-thaijo.org/index.php/JMA/article/view/141083