1.
Anwar S. The Relationship between Volunteer Preparedness and the Action of Spraying Disinfectants in Preventing Covid 19 at PMI North Sumatra Province in 2021 . midwifery [Internet]. 2022 Feb. 27 [cited 2026 May 1];10(1, October):561-7. Available from: https://midwifery.iocspublisher.org/index.php/midwifery/article/view/319