Sasiprapa, Walaiporn, and Narong Boonmeerowd. “Preliminary Study to Classify Suitability Zones for Pummelo cv. Khao Taeng Gua”. Thai Agricultural Research Journal 17, no. 3 (December 7, 1999): 310–320. accessed September 15, 2026. https://li01.tci-thaijo.org/index.php/thaiagriculturalresearch/article/view/234352.