Mansuriwong, Pongsak, Vichai Wongvarodom, and Sompong Te-chato. “Growth and Yield of Marigold Planted in Songkhla Province”. Recent Science and Technology 15, no. 2 (August 31, 2023): 521–536. accessed October 9, 2026. https://li01.tci-thaijo.org/index.php/rmutsvrj/article/view/250765.