Khairanni, Sarah, et al. “DEVELOPMENT OF FLIPBOOK-BASED TEACHING MATERIALS ON BASIC TECHNICAL ELEMENTS OF OFFICE ACTIVITIES”. Jurnal Pendidikan Ekonomi, Perkantoran, Dan Akuntansi, vol. 5, no. 2, Aug. 2024, pp. 500-12, doi:10.21009/jpepa.0502.22.