Denduangruedee, C., and S. E. Villavicencio, Ed.D. “Teacher Professional Development Program: A Case Study on Appreciative Teacher Professional Development (ATPD) at Adventist Ekamai School (AES), Bangkok”. ABAC ODI JOURNAL Vision. Action. Outcome, vol. 2, no. 1, Jan. 2015, http://www.assumptionjournal.au.edu/index.php/odijournal/article/view/1635.