Atifah, Y., Violita, V., Achyar, A., Putri, I., & Selaras, G. (2021). Training Simple Analysis For Lake Water Pollution For The Nagari Community Of Kampung Batu Dalam Solok District, West Sumatra. Pelita Eksakta, 4(2), 148-153. https://doi.org/10.24036/pelitaeksakta/vol4-iss2/158