Determination and Prediction of Some Soil Properties using Partial Least Square (PLS) Calibration and Mid-Infra Red (MIR) Spectroscopy Analysis. j Trop. Soils [Internet]. 2013 Jul. 2 [cited 2025 Nov. 5];16(2):93-8. Available from: https://journal.unila.ac.id/index.php/tropicalsoil/article/view/126