Energy consumption and potential retrofitting of rest and service areas (RSAS) in Malaysia case study by Zakaria, R., Foo, K. S., Ainee, F., Majid Abd., M. Z., Mohamad Zin, R., Hainin, M. R., Yaacob, H., Hamzah, N., Balubaid, S. O., Mazlan, A. N., Ismail, M. A., Yazid, Y. S., Haidar, H., Marwar, N.