Widigdo, B. et al. 2020. Comparison of Morphological Characters of Freshwater Crayfish (Cherax quadricarinatus) from Different Ecosystems in Indonesia. Jurnal Biologi Tropis. 20, 3 (Dec. 2020), 507–513. DOI:https://doi.org/10.29303/jbt.v20i3.2310.