• The Gazette of the Republic of Sri Lanka (Ceylon), Part - II, Legal, No. 161, Thursday April 24, 1975 

  Government of Ceylon (Ceylon Government Printer, 1975-04-24)
• The Gazette of the Republic of Sri Lanka (Ceylon), Part - II, Legal, No. 160, Friday April 18, 1975 

  Government of Ceylon (Ceylon Government Printer, 1975-04-18)
• The Gazette of the Republic of Sri Lanka (Ceylon), Part - II, Legal, No. 159, Friday April 11, 1975 

  Government of Ceylon (Ceylon Government Printer, 1975-04-11)
• The Gazette of the Republic of Sri Lanka (Ceylon), Part - II , Legal, No. 158, Friday April 04, 1975 

  Government of Ceylon (Ceylon Government Printer, 1975-04-04)
• The Gazette of the Republic of Sri Lanka (Ceylon), Part - II, Legal, No. 157, Thursday March 27, 1977 

  Government of Ceylon (Ceylon Government Printer, 1975-03-27)

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