TY - GEN AU - Mapa, Vishaka Seedevi TI - Visithuru masun wagaakireeme vidyaathmaka muladharma SN - 9789559914129 PY - 2011/// CY - [s.l.] PB - [s.n.] KW - AQUACULTURE KW - FISH BREEDING N1 - Text in Sinhala ER -