Arnellis, Arnellis, Nonong Amalita, Elita Jamaan, Media Rosha, and Saddam Aziz. 2021. “Training of Mathematics Olympiad Contents by Using Edmodo App for Mathematics Teachers of MGMP of Junior High School in Bukittinggi City”. Pelita Eksakta 4 (2), 104-10. https://doi.org/10.24036/pelitaeksakta/vol4-iss2/150.