Pongpitchayadej, O, and R Kessuwanrak. “Effect of Guava Leaf Extract Spray on Halitosis after Garlic Ingestion”. Journal of The Department of Medical Services 44, no. 6 (December 30, 2019): 92–98. accessed September 24, 2026. https://he02.tci-thaijo.org/index.php/JDMS/article/view/244800.