Marwati, Dahlia, 		Subayani, Nataria, AND 		Umam, Nanang.
" The Enhancement of The Ability to Calculating Multiplication in Elementary Schools Using Cogglak Media to Catch Up Post Covid-19" <em>Journal Universitas Muhammadiyah Gresik Engineering, Social Science, and Health International Conference (UMGESHIC)</em> [Online], Volume 2 Number 1 (11 January 2023)