Tupas, Sylvino V. College algebra for maritime students (revised edition) / Sylvino V. Tupas. - Revised ed. - Manila: Philippine Foundation for Maritime Teaching Aids, Inc. and the Author, c2005 - 188 pages ; b & w, 23 cm. ISBN: 9710306219 Subjects--Topical Terms: College algebra. LC Class. No.: FIL QA 154 / T87 2005