Lumbantoruan, Mestika, Asima Sirait, and Juneris Aritonang. 2021. “Anxiety Study for the Elderly During the Covid-19 Pandemic: Kajian Kecemasan Lansia Di Masa Pandemi Covid-19”. Ahmar Metastasis Health Journal 1 (2):43-48. https://doi.org/10.53770/amhj.v1i2.48.