Sanchez, Louie Jon, Baybayin 9 : paglalayag sa wika at panitikan : batayan at sanayang aklat sa filipino/ Louie Jon, Sanchez [ and three others]. - Manila : Rex Book Store, 2015. - xvi, 351 pages: illustrations; 26 cm. - RBS serye sa Filipino . ISBN: 9789712370328 Subjects--Topical Terms: Philippine literatureFilipino language Dewey Class. No.: 899.211 / Sa55b