Ecology of Parthenium hysterophorus L
study of classroom climate and pupil motivation in relation to Academic Achievement in the secondary schools of Vizianagaram District of AndhraPradesh
Taxonomic and Electrophoretic studies on three genera of Penaeoid prawns of the east coast of India and some aspects of the Biology of METAPENAEOPSIS BARBATA DE HAAN,1844 from Visakhapatnam