Toriyama, R.; Kanmera, K. (1979). Fusuline fossils from Thailand, pt. XII : Permian fusulines from the Ratburi Limestone in the Khao Khao area Saraburi, Central Thailand. Geological and Paleontological Southeast Asia. 20: 23-93.
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Toriyama, R.; Kanmera, K.
1979
Fusuline fossils from Thailand, pt. XII : Permian fusulines from the Ratburi Limestone in the Khao Khao area Saraburi, Central Thailand