Siska Dwi Ningsih, Henny Arwina Bangun, Winny Sunfriska br Limbong, and Mita Damayanti, “THE INFLUENCE OF POSITIVE THINKING ON STRESS POST THE DEATH OF PARENTS IN ADOLESCENTS AT AL-ITTIHADIYAH PRIVATE HIGH SCHOOL MEDAN”, MORFAI, vol. 4, no. 1, pp. 205–212, Apr. 2024.