00000cam a22000004a 4500 UP-99796217605994308 Buklod 20230503092542.0 m o j ta 030101s1980 xx r |000 u|eng d (iLib)UPD-00000369680 ILS eng QA402 L43 1980 Lee, Barry Basic systems analysis Barry Lee. Manila National Book Store c1980 119 p. Modular computer studies series study unit G1 "Reprinted under authority of Presidential Decree No. 285 as amended under by P.D. Nos. 400 and 1203"--T.p. verso. A reprint of the same ed. published by Input Two-Nine, London System analysis--Data processing. Book Reserve FO Book UPD DLS QA402 L43 1980 Book