Section sketch, study of north entry level difference between driveway of Bond Centre and adjacent Queensway Shopping Mall, 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)奔達中心北面入口車道與相鄰金鐘道商場之間標高差距的研究剖面草圖