A feasibility study on the Phonogram system.

Eitemau Tebyg

• Convention for the protection of producers of phonograms against unauthorized duplication of their phonograms, 1971
  Cyhoeddwyd: (1971)
• Guide to the Rome convention and to the phonograms convention
  Cyhoeddwyd: (1981)
• Cultural Communication in India: Role and Impact of Phonograms
  gan: J. M. Ojha
  Cyhoeddwyd: (1992)
• Feasible Mathematics
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  Cyhoeddwyd: (1993)
• Feasibility study its nature an problems in developing economies
  gan: Bhattacharya,S N
  Cyhoeddwyd: (1981)