00000ctm a22000003a 4500 UP-99796217610232008 Buklod 20120309090225.0 aa r ||| u ta 120309s xx d r |||| u| (iLib)UPD-00183809206 DECON eng LG 993.5 2011 E2 B75 Bries, Avril R. The extinction of a species trends in the Philippine middle-income class size A.R. Bries, Krizia Pauline Felice S. Ferrer. -- 2011. vii, 43 leaves Thesis (B.S. Econ)--University of the Philippines, Diliman. "October 2011." Middle class Philippines Economic conditions. Income Philippines. Ferrer, Krizia Pauline Felice S. FI Thesis, dissertation UPD DECON LG 993.5 2011 E2 B75 Thesis