Chakrabarty, Amit Kumar. “AN APPRAISAL ON CUSTOMER SERVICE OF INDIA POST”. ADILLA : Jurnal Ilmiah Ekonomi Syari’ah 8, no. 1 (January 15, 2025): 119–131. Accessed October 24, 2026. https://e-jurnal.unisda.ac.id/index.php/adilla/article/view/7439.