"Sony Building: History". sonybuilding.jp. Sony Enterprise Co., Ltd. Archived from the original on 25 December 2013. Retrieved 26 December 2013.
"Sony Building: Access". sonybuilding.jp. Sony Enterprise Co., Ltd. Retrieved 26 December 2013.
"Sony Building: History". sonybuilding.jp. Sony Enterprise Co., Ltd. Archived from the original on 1 April 2015. Retrieved 26 December 2013. (in Japanese)
"Sony Building: History". sonybuilding.jp. Sony Enterprise Co., Ltd. Archived from the original on 25 December 2013. Retrieved 26 December 2013.
"Sony Building: History". sonybuilding.jp. Sony Enterprise Co., Ltd. Archived from the original on 1 April 2015. Retrieved 26 December 2013. (in Japanese)