• Ceylon Government Gazette, Part - I : Section I, No. 11,224, Friday, December 27, 1957 

  Government of Ceylon (Ceylon Government Printer, 1957-12-27)
• Ceylon Government Gazette, Part - I : Section I, No. 11,221, Friday, December 20, 1957 

  Government of Ceylon (Ceylon Government Printer, 1957-12-20)
• Ceylon Government Gazette, Part - I : Section I, No. 11,219, Friday, December 13, 1957 

  Government of Ceylon (Ceylon Government Printer, 1957-12-13)
• Ceylon Government Gazette, Part - I : Section I, No. 11,214, Thursday, December 05, 1957 

  Government of Ceylon (Ceylon Government Printer, 1957-12-05)
• Ceylon Government Gazette, Part - I : Section I, No. 11,207, Friday, November 29, 1957 

  Government of Ceylon (Ceylon Government Printer, 1957-11-29)

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