Basic Logic. (Sinhala)

Dahanayake, Somapriya and Edirisinghe, Daya and Perera, Gunadasa
Wathma publishers. DehiwalaISBN955-95384-4-6
Publication year: 1999

Dahanayake, Somapriya and  Edirisinghe, Daya and Perera, Gunadasa  (1999).  Basic Logic. (Sinhala)  Wathma publishers. DehiwalaISBN955-95384-4-6