• Ceylon Government Gazette, Part - I : Section - II, Advertising, No. 14939, Thursday December 31, 1970 

  Government of Ceylon (Ceylon Goverment Printer, 1970-12-31)
• Ceylon Government Gazette, Part - I : Section - II, Advertising, No. 14938, Thursday December 24, 1970 

  Government of Ceylon (Ceylon Goverment Printer, 1970-12-24)
• Ceylon Government Gazette, Part - I : Section - II, Advertising, No. 14937, Friday December 18, 1970 

  Government of Ceylon (Ceylon Goverment Printer, 1970-12-18)
• Ceylon Government Gazette, Part - I : Section - II, Advertising, No. 14936, Friday December 11, 1970 

  Government of Ceylon (Ceylon Goverment Printer, 1970-12-11)
• Ceylon Government Gazette, Part - I : Section - II, Advertising, No. 14935, Friday December 04, 1970 

  Government of Ceylon (Ceylon Goverment Printer, 1970-12-04)

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