statistics (with business emphasis). - Estolano, Marcial P. 4 0 16; Monta, Florentina D.;Ignacio, Teresita D.;Beriguel, Julieta T.;Angeles, Erlinda S.; 5 (Makati City:;Makati City Grandwater Pub. and Research Corp,;Grandwater Publications and Research Corporation)
Keywords: 2 -- 0; 6; 20; 20; 2