Sketches, section and layout of north entry and study of placement of light fixtures over entry steps and planters, Bond Centre (now Lippo Centre) (1984–1988), Queensway, Admiralty, Hong Kong香港金鐘道奔達中心(現為力寶中心)(1984至1988年)北面入口的剖面和平面佈置草圖,以及入口階梯及花槽上方燈具位置研究