Dessy Ayuningtyas, et al. “EFEKTIFITAS LAUGHING THERAPY DAN RELAKSASI OTOT TERHADAP STRES LANSIA DI PANTI WERDHA MAJAPAHIT”. MEDICA MAJAPAHIT, vol. 9, no. 2, Oct. 2019, https://ejournal.stikesmajapahit.ac.id/index.php/MM/article/view/271.