Chaodumrong, Xiangdong & Shuzhong 2007: "Permian strate of the Shan-Thai terrance in Thailand consist of the clastic sequence of the Kaeng Krachon Group and the conformably overlying carbonate sequence of the Ratburi Group ...[which] can be traced widely from Malaysia, through peninsular Thailand, Myanmar, West Yunnan, to Lhasa." Chaodumrong, Pol; Xiangdong, Wang; Shuzhong, Shen. Permian lithostratigraphy of the Shan-Thai terrane in Thailand: revision of the Kaeng Krachan and Ratburi Groups(PDF). GEOTHAI'07 International Conference of Geology of Thailand: Towards Sustainable Development and Sufficiency Economy. Department of Mineral Resources, Bangkok & Nanjing Institute of Geology and Palaeontology, Nanjing: 229–236. 2007 [5 November 2017].
Bunopas & Vella 1992: "Thailand consists of Shan–Thai and Indochina Microcontinents or Terranes welded together by the subsequently deformed Nan Suture.... During the Middle Triassic Shan–Thai sutured nearly simultaneously to Indochina and to South China, the continent–continent collision being a part of the Indosinian Orogeny and Indochina tended to underthrust Shan–Thai." Bunopas, Sangad; Vella, Paul. Geotectonics and Geologic Evolution of Thailand(PDF). National Conference on "Geologic Resources of Thailand: Potential for Future Development". Department of Mineral Resources, Bangkok: 209–229. November 1992 [5 November 2017]. (原始内容存档(PDF)于2018-03-28).
Bunopas & Vella 1992: "Thailand consists of Shan–Thai and Indochina Microcontinents or Terranes welded together by the subsequently deformed Nan Suture.... During the Middle Triassic Shan–Thai sutured nearly simultaneously to Indochina and to South China, the continent–continent collision being a part of the Indosinian Orogeny and Indochina tended to underthrust Shan–Thai." Bunopas, Sangad; Vella, Paul. Geotectonics and Geologic Evolution of Thailand(PDF). National Conference on "Geologic Resources of Thailand: Potential for Future Development". Department of Mineral Resources, Bangkok: 209–229. November 1992 [5 November 2017]. (原始内容存档(PDF)于2018-03-28).