• The Gazette of the Republic of Sri Lanka (Ceylon), Part - I : Section - I, General, No. 161/1, Sunday April 27, 1975 

  Government of Ceylon (Ceylon Government Printer, 1975-04-27)
• The Gazette of the Republic of Sri Lanka (Ceylon), Part - I : Section - I, General, 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 - I : Section - I, General, 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 - I : Section - I, General, 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 - I : Section - I, General, No. 158, Friday April 04 , 1975 

  Government of Ceylon (Wijeya Newspapers Ltd, 1975-04-04)

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