Syamsudyan, M., and I. U. Choiriyah. “IMPLEMENTATION OF THE E-BUDDY SIDOARJO APPLICATION IN DIGITAL-BASED OFFICIAL LETTER MANAGEMENT IN KEBOGUYANG VILLAGE, JABON DISTRICT”. Proceeding of International Conference on Social Science and Humanity, vol. 2, no. 2, May 2025, pp. 1533-51, doi:10.61796/icossh.v2i2.409.