Maulana, Y. “Implementation and Obstacles to the Multi-Sectoral Approach in COVID-19 Tracing and Testing at Puskesmas: Experience from Cilacap, Central Java”. BKM Public Health and Community Medicine, Vol. 37, no. 11 Suppl., Oct. 2021, https://jurnal.ugm.ac.id/v3/BKM/article/view/3251.