TY - BOOK AU - Villegas, Bernardo M. AU - Abola, Victor A. ED - ED - ED - ED - TI - : an introduction SN - 9719245905 (paperback) SN - 2 PY - 2001///.46 CY - Pasig City PB - Center for Research and Communication Foundations KW - KW - 2 KW - 0 KW - 6 KW - 20 KW - Economics N1 - Includes bibliographical references and index; 5 ER -