Pasaribu, Rodiah, Pristiyono Pristiyono, Yudi Prayoga, and Marlina Siregar. 2022. “Utilization Of Coconut Water Post Covid-19 Vaccine For Students Of West Bilah State 5 Junior High School”. International Journal Of Community Service 2 (2):173-77. https://doi.org/10.51601/ijcs.v2i2.86.