Authors	Year	Title
Lee	1975	Lower Permian ammonoid faunal provinciality. Unpublished PhD dissertation, University of Iowa, USA,, 253 p.
Lee	1980	Two new Permian ammonoid faunas from Malaysia. Geology and Palaeontology of Southeast Asia (Symposium Tsukuba 1978), volume 21: 63-72, 1 pl.
Lee	1981	Permian ammonoid fauna of Venezuela. Proceedings of the Geological Society of China, 24: 75-86, fig.1-4, pl.1; T'ai-pei, Taiwan.