[1]
Senowbari-Daryan, B. and Ingavat-Helmcke, R. 1993. Sponge assemblage of some Upper Permian reef limestones from Phrae province (Northern Thailand). Geologija. 36, 1 (Dec. 1993), 5–59. DOI:https://doi.org/10.5474/geologija.1994.001.