Nur, Frinadiniarta. “ASPECTS OF DIFFICULTY OF CONDITIONAL SENTENCES IN BUSINESS NEGOTIATION”. ESENSI: Jurnal Manajemen Bisnis 20, no. 1 (September 26, 2018): 35-60. Accessed November 21, 2024. https://ibn.e-journal.id/index.php/ESENSI/article/view/49.