TY - BOOK TI - Essentials of systems analysis and design / 6th ed., Global ed AU - Valacich, Joseph S., 1959-, author AU - George, Joey F., author AU - Hoffer, Jeffrey A., author SN - 9781292076614 PB - Pearson PP - Boston : Pearson, 2015. PY - 2015 UR - https://library.korea.ac.kr/detail/?cid=CAT000046113516&ctype=m