Florence Nightin Gale, and Rahma Fauzia. “GAMBARAN OPTIMIS PASIEN RAWAT INAP : OPTIMIST INPATIENT”. Psikologia: Jurnal Pemikiran dan Penelitian Psikologi 13, no. 1 (September 3, 2019): 27–37. Accessed August 21, 2025. https://talenta.usu.ac.id/jppp/article/view/2265.