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de la Merced, Karen Grace T., Pinky Maricris P. Manza, John Mark D. Tagamolila, and Rachel Irene L. Zipagan. An Information Systems Study of the Sales Department of Demex Rattancraft Inc. Diliman, Quezon City: College of Engineering, 1996.

de la Merced, Karen Grace T., et al. An Information Systems Study of the Sales Department of Demex Rattancraft Inc. College of Engineering, 1996.