Prelimanary Investigation on The Factors That Influencing The Maintenance Cost of ApartmentNor Aini Salleh, Mohd Khairul Annuar Mohd Yakin, Kharizam Ismail and Yuhainis TalibMATEC Web Conf., 66 (2016) 00046DOI: https://doi.org/10.1051/matecconf/20166600046