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Synthesis of Pyrazolopyrimidine and their Condensed Derivatives as A New Class of Dyes: Submitted for the Partial Fulfillment of the Requirements for Award of the M.Sc. Degree in Organic Chemistry / Kawther Abd El Zaher Ahmed Aly; Galal Hamza Elgemeie, Sayed Abd Elsamie, Maher H. Helal.
- 547
- Aly, Kawther Abd El Zaher Ahmed.
- Helwan University,
- 2000.
- Cairo :