Tej Bunnag

Harmonized System (HS)?". World Customs Organization. "ISO 3166-2:TH". Tej Bunnag (1969). The Provincial Administration of Siam from 1892 to 1915. p. 273ff

from the original (PDF) on 31 August 2021. Retrieved 25 December 2013. Tej Bunnag (2005). Intendancy System of Government in Siam: 1892–1915 (PDF) (in Thai)

of Siam. The title of Phya Kalyanamaitri was also bestowed upon him. Bunnag, Tej (1977). The provincial administration of Siam, 1892-1915 : the Ministry

เทศาภิบาล [Thesaphiban] (PDF) (in Thai). Bangkok: Matichon. ISBN 9743227814. Tej Bunnag (1977). The Provincial Administration of Siam, 1892-1915: the Ministry

(4): 1131–1152. doi:10.1111/nana.12523. ISSN 1354-5078. S2CID 151296807. Tej Bunnag. (1977). The provincial administration of Siam from 1892 to 1915 : the