HARDI, Feri. Changes in Elderly Anxiety After Laughing Humor Therapy. Jurnal Kesehatan dr. Soebandi, [S. l.], v. 6, n. 2, p. 49–53, 2018. DOI: 10.36858/jkds.v6i2.127. Disponível em: https://journal.uds.ac.id/jkds/article/view/127. Acesso em: 22 nov. 2024.