PENGARUH TERAPI TERTAWA TERHADAP PENURUNAN TINGKAT KECEMASAN PADA LANSIA. Jurnal Keperawatan, [S. l.], v. 12, n. 2, p. 25–33, 2023. DOI: 10.47560/kep.v12i2.538. Disponível em: https://jurnal.stikeswilliambooth.ac.id/index.php/Kep/article/view/538. Acesso em: 27 dec. 2025.