A. Wulandari and P. R. Veryanti, “Analisis Biaya Terapi Pasien Penyakit Paru Obstruktif Kronik (PPOK) Rawat Inap di RSUP Fatmawati Periode 2018: Cost Analysis of Therapy Patient Chronic Obstructive Pulmonary Disease (COPD) Hospital in RSUP Fatmawati 2018”, Sainstech Farma, vol. 13, no. 1, pp. 8–14, Apr. 2020.