Valacich, J. S. (2015). Essentials of systems analysis and design. Pearson Educational Limited.
استشهاد بنمط شيكاغوValacich, Joseph S. Essentials of Systems Analysis and Design. Pearson Educational Limited, 2015.
MLA استشهادValacich, Joseph S. Essentials of Systems Analysis and Design. Pearson Educational Limited, 2015.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.