“Implementation of an Outreach Service for Population Administration Document Processing Among Older Adults in Lumban Julu District, Toba Regency”. TOFEDU: The Future of Education Journal 5, no. 2 (July 20, 2026): 4196–4204. Accessed October 9, 2026. https://journal.tofedu.or.id/index.php/journal/article/view/2191.