Maryana, L., H. Hikmawati, J. Rokhmat, and S. Susilawati. “Development of Visual Basic Application PPT Media Based on Cooperative Model Type of NHT to Increase Motivation and Mastery of Physics Concepts”. AMPLITUDO : Journal of Science and Technology Innovation, vol. 1, no. 2, Aug. 2022, pp. 40-47, doi:10.56566/amplitudo.v1i2.6.