Rya Anastasya Siregar, Novita Sari Batubara. Free Medical Treatment for the Elderly in Pintu Langgit Village, Angkola Julu District, Padang Sidimpuan City in 2023. IJCS [Internet]. 2022 Dec. 30 [cited 2024 Nov. 23];1(2):93-8. Available from: https://ejournal.ipinternasional.com/index.php/ijcs/article/view/316