Utami, Fajar Rahmawati, Hairrudin, and Suhartini. 2023. “Lesson Learned From Parents’ Willingness to Covid-19 Vaccination in Children Aged 6 – 11 Years (with the Health Belief Model Approach)”. International Journal of Medical Science and Clinical Research Studies 3 (8):1667-73. https://doi.org/10.47191/ijmscrs/v3-i8-42.