by Kewesi Ampong-Nyarko | S.K De Datta.
by Gomez, K.A | .
by Evolution Of The Gene | .
by | .
by M D Pathak | .
by E A Heinrich | .
by Te-Tzu Chang | .
by P A Roger | S A Kulasooriya.
by Benito S Vergara | .
by Irri | .
by The International Rice Research Institute | .
by James E.Wimberly | .
by IRRI.
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