• The Gazette of the Republic of Sri Lanka (Ceylon), Part - I : Section - IIB, Advertising, No. 122, Friday July 26, 1974 

  Government of Ceylon (Ceylon Government Printer, 1974-07-26)
• The Gazette of the Republic of Sri Lanka (Ceylon), Part - I : Section - IIB, Advertising, No. 120, Friday July 12, 1974 

  Government of Ceylon (Ceylon Government Printer, 1974-07-12)
• The Gazette of the Republic of Sri Lanka (Ceylon), Part - I : Section - IIB, Advertising, No. 119, Friday July 05, 1974 

  Government of Ceylon (Ceylon Government Printer, 1974-07-05)
• The Gazette of the Republic of Sri Lanka (Ceylon), Part - I : Section - IIA, Advertising, No. 122, Friday July 26, 1974 

  Government of Ceylon (Ceylon Government Printer, 1974-07-26)
• The Gazette of the Republic of Sri Lanka (Ceylon), Part - I : Section - IIA, Advertising, No. 120, Friday July 12, 1974 

  Government of Ceylon (Ceylon Government Printer, 1974-07-12)

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