Overall precision test of near infrared spectroscopy on mango fruits (Mangifera indica CV. ‘Nam Dok Mai Si Thong’) by on-line and off-line systemsWachiraya Lekhawattana and Panmanas SirisomboonE3S Web Conf., 187 (2020) 04006DOI: https://doi.org/10.1051/e3sconf/202018704006