TY - BOOK T1 - Essentials of systems analysis and design A1 - Valacich, Joseph S. 1959- A2 - George, Joey F. A2 - Hoffer, Jeffrey A. LA - English PP - Upper Saddle River, New Jersey PB - Prentice Hall YR - 2001 UL - https://tuklas.up.edu.ph/Record/UP-99796217605959125 OP - 423 CN - QA 76.9 S88 V34 2001 SN - 0130183733 (pbk.) KW - System design. KW - Systems analysis. ER -