Marwati, D. S., Subayani, N. W. and Umam, N. K. (2023) “The Enhancement of The Ability to Calculating Multiplication in Elementary Schools Using Cogglak Media to Catch Up Post Covid-19”, Journal Universitas Muhammadiyah Gresik Engineering, Social Science, and Health International Conference (UMGESHIC), 2(1), pp. 212–221. doi: 10.30587/umgeshic.v2i1.5155.