ปัญญโรจน์ ณ., ดวงพิกุล ก. and ศิริพรอัครชัย ธ. 2019. Development guidelines for the operation of community enterprises into the Primary GMP A Case Study of Nan Malt Enterprise. RMUTL Journal of Business Administration and Liberal Arts. 7, 1 (Jun. 2019), 107–116.