K. Umam, J. Susanto, T. T. Dewi, E. S. Wijayanti, and L. Fadliyah, “MENTAL STATUS WITH SOCIAL INTERACTION CAPACITY IN THE ELDERLY AT SUKODADI COMMUNITY HEALTH CENTER, LAMONGAN DISTRICT”, JoViN, vol. 1, no. 2, pp. 140–145, Oct. 2020.