Yunardi, Mei Linawati Siahaan and Arfyah Sagita Yunanda (2022) “THE RELATIONSHIP BETWEEN STRESS AND SLEEP QUALITY IN ELDERLY IN RAYA BAYU VILLAGE, RAYA DISTRICT, SIMALUNGUN DISTRICT”, MORFAI JOURNAL, 1(2), pp. 395–401. doi: 10.54443/morfai.v1i2.722.