Porsiri, N., and S. Wangwan. “DATA COLLECTION FOR QUALITATIVE RESEARCH IN DRAMATIC ART AND MUSIC”. Fine Arts Journal: Srinakharinwirot University, vol. 24, no. 1, June 2020, pp. 141-58, https://so01.tci-thaijo.org/index.php/jfofa/article/view/240029.