• The Gazette of the Republic of Sri Lanka (Ceylon), Part - I : Section - IIB, Advertising, No. 92, Friday December 28, 1973 

  Government of Ceylon (Ceylon Government Printer, 1973-12-28)
• The Gazette of the Republic of Sri Lanka (Ceylon), Part - I : Section - IIB, Advertising, No. 91, Friday December 21, 1973 

  Government of Ceylon (Ceylon Government Printer, 1973-12-21)
• The Gazette of the Republic of Sri Lanka (Ceylon), Part - I : Section - IIB, Advertising, No. 90, Friday December 14, 1973 

  Government of Ceylon (Ceylon Government Printer, 1973-12-14)
• The Gazette of the Republic of Sri Lanka (Ceylon), Part - I : Section - IIB, Advertising, No. 89, Friday December 07, 1973 

  Government of Ceylon (Ceylon Government Printer, 1973-12-07)
• The Gazette of the Republic of Sri Lanka (Ceylon), Part - I : Section - IIA, Advertising, No. 92, Friday December 28, 1973 

  Government of Ceylon (Ceylon Government Printer, 1973-12-28)

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