Ng, P. Y. (2011). Household willingness to pay for mandated kerbside recycling programme in Hulu Langat, Malaysia.
芝加哥风格引文Ng, Phuay Ying. Household Willingness to Pay for Mandated Kerbside Recycling Programme in Hulu Langat, Malaysia. 2011.
MLA引文Ng, Phuay Ying. Household Willingness to Pay for Mandated Kerbside Recycling Programme in Hulu Langat, Malaysia. 2011.
警告：这些引文格式不一定是100％准确.