Aviandari, T., Pamungkasari, E. P. and Murti, B. (2021) “Management Analysis of the Implementation of Covid-19 Vaccination in Reducing Positivity Rate in Regency Health Office of Boyolali, Central Java”, Journal of Health Policy and Management, 6(3), pp. 190–202. Available at: https://thejhpm.com/index.php/thejhpm/article/view/243 (Accessed: 4 May 2024).