Terdwongworakul, Anupun, and Natawut Neamsorn. “Non-destructive Maturity Measurement of ‘Montong’ Durian Using Stem Strength and Resonant Frequency”. Engineering and Applied Science Research 33, no. 5 (February 18, 2013): 555–563. accessed August 31, 2026. https://ph01.tci-thaijo.org/index.php/easr/article/view/6017.