Isyti’aroh, I, Nur Izzah, Herni Rejeki, and Nurul Aktifah. 2021. “Covid-19 Vaccination Service For Public And Inter-Religious: To Built Herd Immunity In Pekalongan District”. Prosiding University Research Colloquium, December, 986-94. https://repository.urecol.org/index.php/proceeding/article/view/1663.