Srewitoon, Charintorn, Chatnalin Kaewsom, and Thitima Sriphon. 2019. “Systematic Product Development for Chili Paste in Ban Than-Om Community, Thung Tako District, Chumphon Province”. University of the Thai Chamber of Commerce Journal Humanities and Social Sciences 39 (3):56-74. https://so06.tci-thaijo.org/index.php/utccjournalhs/article/view/212218.