Naibaho, T.S.E., Aulia, D.N. and Nasution, A.D. 2019. Evaluasi Cahaya pada Ruang Rawat Inap Pasien: Studi Kasus Rumah Sakit Universitas Sumatera Utara: Evaluation in Patient’s Inpatient Wards: Case Study in Hospital University of Sumatera Utara. Anterior Jurnal. 18, 2 (Jun. 2019), 175–181. DOI:https://doi.org/10.33084/anterior.v18i2.446.