• Ceylon Government Gazette, Extraordinary, Part - I, No. 7150, Monday, December 20, 1920 

  Government of Ceylon (Ceylon Government Printer, 1920-12-20)
• Ceylon Government Gazette, Extraordinary, Part - I, No. 7148, Thursday, December 16, 1920 

  Government of Ceylon (Ceylon Government Printer, 1920-12-16)
• Ceylon Government Gazette, Extraordinary, Part - I, No. 7144, Monday, November 22, 1920 

  Government of Ceylon (Ceylon Government Printer, 1920-11-22)
• Ceylon Government Gazette, Extraordinary, Part - I, No. 7143, Saturday, November 20, 1920 

  Government of Ceylon (Ceylon Government Printer, 1920-11-20)
• Ceylon Government Gazette, Extraordinary, Part - I, No. 7140, Monday, November 08, 1920 

  Government of Ceylon (Ceylon Government Printer, 1920-11-08)

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