Tiurma Manurung, R., Amalia, A., Vega Vitianingsih, A., Rizky, S., & Susanto, E. (2018). Multimedia Flash Basic Mathematic Learning for Primary School. International Journal of Engineering & Technology, 7(2.13), 464-466. https://doi.org/10.14419/ijet.v7i2.13.18142