Lim Sanny, Milka, Yessica Claralisa, Ika Triana, Ulf Henning Richter. 2020. “QUALITY FUNCTION DEPLOYMENT AND SERVQUAL BASED SERVICE QUALITY ANALYSIS: COMMERCIAL CLEANING COMPANY CASE IN JAKARTA, INDONESIA”. PalArch’s Journal of Archaeology of Egypt / Egyptology 17 (7):3067 -80. https://archives.palarch.nl/index.php/jae/article/view/1616.