Sakboworn Tumpeesuwan และผู้แต่งคนอื่นๆ. (2010) Palaeontology of the early cretaceous non-marine molluscan assemblages from the Sao Khua formation in Nong Bua Lamphu, Phu Wiang and Sahat Sakhan areas, Northeastern Thailand. Chulalongkorn University:ม.ป.ท.Sakboworn Tumpeesuwan และผู้แต่งคนอื่นๆ. 2010. Palaeontology of the early cretaceous non-marine molluscan assemblages from the Sao Khua formation in Nong Bua Lamphu, Phu Wiang and Sahat Sakhan areas, Northeastern Thailand. ม.ป.ท.:Chulalongkorn University;Sakboworn Tumpeesuwan และผู้แต่งคนอื่นๆ. Palaeontology of the early cretaceous non-marine molluscan assemblages from the Sao Khua formation in Nong Bua Lamphu, Phu Wiang and Sahat Sakhan areas, Northeastern Thailand. ม.ป.ท.:Chulalongkorn University, 2010. Print.