Pamungkas, Teguh. 2023. “Detection of the Use of Masks As an Effort to Prevent Covid-19 Using Gray Level Co-Occurrence Matrix (GLCM) Based on Learning Vector Quantization (LVQ)”. Journal of Advances in Information Systems and Technology 4 (2), 180-87. https://doi.org/10.15294/jaist.v4i2.61105.