Racey, Andrew; Goodall, Jeffery G. S. (2009). "Palynology and stratigraphy of the Mesozoic Khorat Group red bed sequences from Thailand". Geological Society, London, Special Publications. 315 (1): 69–83. CiteSeerX10.1.1.1030.8425. doi:10.1144/sp315.6. ISSN0305-8719.
Racey, Andrew; Goodall, Jeffery G. S. (2009). "Palynology and stratigraphy of the Mesozoic Khorat Group red bed sequences from Thailand". Geological Society, London, Special Publications. 315 (1): 69–83. CiteSeerX10.1.1.1030.8425. doi:10.1144/sp315.6. ISSN0305-8719.
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Racey, Andrew; Goodall, Jeffery G. S. (2009). "Palynology and stratigraphy of the Mesozoic Khorat Group red bed sequences from Thailand". Geological Society, London, Special Publications. 315 (1): 69–83. CiteSeerX10.1.1.1030.8425. doi:10.1144/sp315.6. ISSN0305-8719.