Fitrianawati, M. and Setiyawati, T. 2021. Development of an ethnomathematics-based digital flipbook module for least common multiple and greatest common divisor in the fourth grade of elementary school. Ethnomathematics Journal. 2, 2 (Sep. 2021), 67–79. DOI:https://doi.org/10.21831/ej.v2i2.42699.