Predicting Marian Plum Fruit Quality without Environmental Condition Impact by Handheld Visible–Near-Infrared Spectroscopy - Jetsada Posom; Junjira Klaprachan; Kamonpan Rattanasopa; Panmanas Sirisomboon; Khwantri Saengprachatanarug; Seree Wongpichet (ACS Omega, 2020)