Almanifi, O.R.A. et al. 2021. The Classification of FTIR Plastic Bag Spectra via Label Spreading and Stacking. Mekatronika: Journal of Intelligent Manufacturing and Mechatronics. 3, 2 (Jul. 2021), 70–76. DOI:https://doi.org/10.15282/mekatronika.v3i2.7390.