Mulley, C., Yen, B. T. H. & Zhang, M., 5月 2021, The Routledge Handbook of Public Transport. Mulley, C., Nelson, J. D. & Ison, S. (編輯). Routledge Taylor & Francis Group, p. 123-13715 p.
Yen, T.-H. & Mulley, C., 5月 2021, The Routledge Handbook of Public Transport. Mulley, C., Nelson, J. D. & Ison, S. (編輯). Routledge Taylor & Francis Group, p. 405-51814 p.