Rahayuningsih, M., Y. Revandi, and S. H. Bintari. “MOLD DIVERSITY OF WREATHED HORNBILL (Rhyticeros Undulatus) NEST IN MOUNT UNGARAN”. BIOTROPIA, vol. 29, no. 1, Apr. 2022, doi:10.11598/btb.2022.29.1.1615.