Fitrianawati, Meita, and Tika Setiyawati. “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, vol. 2, no. 2, Sept. 2021, pp. 67-79, doi:10.21831/ej.v2i2.42699.