Wong, Yoon Wah | “Cannon Ball Tree” [Pao Tang Shu 泡弹树], Hua Yuan Cheng Shi Yu Shui De Shen Hua [花园城市与水的神话], Singapore: 世博太阳多元文化峰会筹委会, 2010, 21, Print.
February 3, 2012
Wong, Yoon Wah | “Cannon Ball Tree” [Pao Tang Shu 泡弹树], Hua Yuan Cheng Shi Yu Shui De Shen Hua [花园城市与水的神话], Singapore: 世博太阳多元文化峰会筹委会, 2010, 21, Print.