Durinda Puspasari, Durinta Puspasari, Ruri Nurul Aeni Wulandari, Lifa Farida Panduwinata, and Andy Parsetyo Wati. 2025. “Development of a Case Study-Based Digital Book to Enhance Learning in Office Management Education”. International Journal of Studies in International Education 2 (4):108-16. https://doi.org/10.62951/ijsie.v2i4.436.