Arfiyaningsih, R. N.; Aniroh, U. Gambaran Tingkat Pengetahuan Ibu Hamil Tentang Vaksinasi Covid-19 Di Wilayah Kerja Puskesmas Kalongan: Description Of The Level Knowledge Of Pregnant Women About Covid-19 Vaccination In The Working Area Of The Kalongan Health Center. jhhs 2023, 5, 26-35.