INTARAVICHA, N. Efficacy of Shoebox Spectrophotometer Program Working on Smartphone to Measure Absorbance for Soil Phosphorus Analysis by Molybdenum Blue Colorimetric Method. Thai Agricultural Research Journal, [S. l.], v. 38, n. 2, p. 150–160, 2020. DOI: 10.14456/thaidoa-agres.2020.11. Disponível em: https://li01.tci-thaijo.org/index.php/thaiagriculturalresearch/article/view/227081. Acesso em: 25 apr. 2024.