Charles W.W. Ng, Jason L. Coo and Anthony Gunawan 2018. State-of-the-Art Research in Geo-energy and Geo-environmental Engineering: Energy Pile and Earthen Capillary Landfill Cover System. Geotechnical Engineering Journal of the SEAGS & AGSSEA . 49, 2 (Jun. 2018), 1–11. DOI:https://doi.org/10.14456/seagj.2018.30.