Fitriza, Z., Yerimadesi, Y., Aini, F., Mawardi, M., Fitri, L., Julianti, N., Julianti, N., & Rivaldo, I. (2022). Training on the Preparation of Problem Based Learning and Project Based Learning Materials for Chemistry Teachers in the 5th Region of West Sumatera. Pelita Eksakta, 5(1), 8-13. https://doi.org/10.24036/pelitaeksakta/vol5-iss1/175