kusumastuti, lasyana, Arissona Dia Indah Sari, and Iqnatia Alfiansyah. 2023. “The Effectiveness of Assignment Method Through Whatsapp Application on The Mathematics Learning Outcomes of Students in Elementary School”. IJPSE Indonesian Journal of Primary Science Education 3 (2):1-10. https://doi.org/10.33752/ijpse.v3i2.3361.