“GAMBARAN EFISIENSI PELAYANAN RAWAT INAP BERDASARKAN GRAFIK BARBER JOHNSON PADA RUANG PERAWATAN NIFAS DI RSKDIA PERTIWI TAHUN 2022–2024”, Medic Nutricia, vol. 21, no. 3, pp. 41–50, Nov. 2025, Accessed: Oct. 02, 2026. [Online]. Available: https://cibjournal.com/index.php/medicnutricia/article/view/1453