Hean Tat Keh, Singfat Chu, Jiye Xu. Efficiency, effectiveness and productivity of marketing in services. European Journal of Operational Research, 170(1):265-276, 2006. [doi]
@article{KehCX06,
title = {Efficiency, effectiveness and productivity of marketing in services},
author = {Hean Tat Keh and Singfat Chu and Jiye Xu},
year = {2006},
doi = {10.1016/j.ejor.2004.04.050},
url = {http://dx.doi.org/10.1016/j.ejor.2004.04.050},
researchr = {https://researchr.org/publication/KehCX06},
cites = {0},
citedby = {0},
journal = {European Journal of Operational Research},
volume = {170},
number = {1},
pages = {265-276},
}