Charoen, Ratchanee, Wanticha Savedboworn, Samart Phuditcharnchnakun, and Thanakit Khuntaweetap. “Development of Antioxidant Gummy Jelly Candy Supplemented with Psidium guajava Leaf Extract”. Applied Science and Engineering Progress 8, no. 2 (February 24, 2015): 145–151. accessed September 18, 2026. https://ph02.tci-thaijo.org/index.php/ijast/article/view/67472.