Alfazali, M., Hanafi, Y., & Ma’rifah, D. (2021). Literature Study: Diversity level of coastal echinoidea as a source of biology learning materials for biodiversity. Edubiotik : Jurnal Pendidikan, Biologi Dan Terapan, 6(02), 99-107. https://doi.org/10.33503/ebio.v6i02.1234