Pelaksanaan Metode Ular Tangga pada Kelas Ibu Hamil Terhadap Peningkatan Pengetahuan Ibu tentang Tanda Bahaya Kehamilan: Implementation of the Snake and Ladder Method in the Class of Pregnant Women on Increasing Mother’s Knowledge about Danger Signs of Pregnancy. JBC. 2022;4(1):62-68. doi:10.33860/jbc.v4i1.763