Lumban Gaol, Claudia Geraldine, and Malida Putri. 2022. “Bermain Teka-Teki Sambil Belajar Matematika, Bagaimana Caranya?”. Jurnal Pengabdian Masyarakat 3 (2):264-71. https://doi.org/10.32815/jpm.v3i2.1097.