SUPRIYANTO, Wipi. Strategi Komunikasi Internal PDAM Tirta Satria Mengatasi Keluhan Pelanggan. Warta Ikatan Sarjana Komunikasi Indonesia, Indonesia, v. 2, n. 01, p. 48–53, 2019. DOI: 10.25008/wartaiski.v2i01.27. Disponível em: https://warta-iski.or.id/index.php/WartaISKI/article/view/27. Acesso em: 8 oct. 2026.