Supriyanto, Wipi. “Strategi Komunikasi Internal PDAM Tirta Satria Mengatasi Keluhan Pelanggan”. Warta Ikatan Sarjana Komunikasi Indonesia 2, no. 01 (June 30, 2019): 48–53. Accessed October 8, 2026. https://warta-iski.or.id/index.php/WartaISKI/article/view/27.