• The Gazette of the Republic of Sri Lanka (Ceylon), Part - II, Legal, No. 117, November 28 Friday, 1980 

  Government of Ceylon (Ceylon Government Printer, 1980-11-28)
• The Gazette of the Republic of Sri Lanka (Ceylon), Part - II, Legal, No. 115, November 14 Friday, 1980 

  Government of Ceylon (Ceylon Government Printer, 1980-11-14)
• The Gazette of the Republic of Sri Lanka (Ceylon), Part - II, Legal, No. 111, October 17 Friday, 1980 

  Government of Ceylon (Ceylon Government Printer, 1980-10-17)
• The Gazette of the Republic of Sri Lanka (Ceylon), Part - II, Legal, No. 107, September 19 Friday, 1980 

  Government of Ceylon (Ceylon Government Printer, 1980-09-19)
• The Gazette of the Republic of Sri Lanka (Ceylon), Part - II, Legal, No. 105, September 5 Friday, 1980 

  Government of Ceylon (Ceylon Government Printer, 1980-09-05)

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