Kanyawana, Khasim S. Reuse of Sodium Hydroxide solution in a modified beckmann method of treating low quality roughages Khasim S. Kanyawana - Dar es Salaam University of Dar es Salaam 1979 - ix,75p. ill. 30cm. Subjects--Topical Terms: Sodium Hydroxide LC Class. No.: THS EAF SF97.K3