Search Results       Your search for [author]Aray, Luciana Vallejo, 1920- returned 1 record.           Common problems of grade six pupils in the public school of Cotabato City District I for the school year 1971-1972. by Aray, Luciana Vallejo, 1920-; 1971. Subject: Sixth grade students -- Cotabato City.          Add to Book Cart Relevance: 36.91%