Estolas, Josefina V. Marketing research for Filipinos / Josefina V. Estolas, Samuel M. Salvador and Zenaida S. Villalva. - 382 p. ; 22 cm. ISBN: 9710843796 Subjects--Topical Terms: Marketing research Subjects--Index Terms: Business Commerce Research LC Class. No.: HF 5415.2 E8 1989