Adityanti, R., & Mulyawan, A. (2015). Aplikasi Perhitungan PPn atas Jasa Pihak Ketiga. Jurnal Computech &Amp; Bisnis (e-Journal), 9(2), 73–83. Retrieved from https://jurnal.stmik-mi.ac.id/index.php/jcb/article/view/157