Wabula , D. F. ., Wabula, D. F., & Mustaqim, M. I. (2022). Perancangan Pelayanan Surat Berbasis Android. STAINS (SEMINAR NASIONAL TEKNOLOGI &Amp; SAINS), 1(1), 206–212. Retrieved from https://proceeding.unpkediri.ac.id/index.php/stains/article/view/1427