Search Results       Your search for [subject]Congruence, Extension of -- Mathematics -- Derivation of Formulas returned 1 record.           An extension of congruence. by Gervacio, Severino V.; Diliman, Quezon City: University of the Philippines, 1971. Subject: Congruence, Extension of -- Mathematics -- Derivation of Formulas.          Add to Book Cart Relevance: 49.03%