• The Gazette of the Republic of Sri Lanka (Ceylon), Part - I : Section - IIB, Advertising, No. 109, Friday April 26, 1974 

  Government of Ceylon (Ceylon Government Printer, 1974-04-26)
• The Gazette of the Republic of Sri Lanka (Ceylon), Part - I : Section - IIB, Advertising, No. 108, Friday April 19, 1974 

  Government of Ceylon (Ceylon Government Printer, 1974-04-19)
• The Gazette of the Republic of Sri Lanka (Ceylon), Part - I : Section - IIB, Advertising, No. 107, Thursday April 11, 1974 

  Government of Ceylon (Ceylon Government Printer, 1974-04-11)
• The Gazette of the Republic of Sri Lanka (Ceylon), Part - I : Section - IIB, Advertising, No. 106, Friday April 05, 1974 

  Government of Ceylon (Ceylon Government Printer, 1974-04-05)
• The Gazette of the Republic of Sri Lanka (Ceylon), Part - I : Section - IIA, Advertising, No. 109, Friday April 26, 1974 

  Government of Ceylon (Ceylon Government Printer, 1974-04-26)

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