HASHIM, N. I., N. JAINI, E. R. JAMALUDDIN, and F. CHEK SULAIMAN. “Measuring Service Quality Expectation and Satisfaction Using Servqual at Hutan Lipur Sungai Congkak”. Environment-Behaviour Proceedings Journal, vol. 2, no. 6, Nov. 2017, pp. 161-8, doi:10.21834/e-bpj.v2i6.858.