Yonggi Arvindo Tantu, et al. “Development Of Flipcharts As A Learning Media With Material On The Human Digestive System For Students At SMP Negeri 4 Bitung”. Dharma Acariya Nusantara: Jurnal Pendidikan, Bahasa Dan Budaya, vol. 1, no. 2, Sept. 2023, pp. 103-15, doi:10.47861/jdan.v1i2.487.