Ruan, Lotus; Knockel, Jeffrey; Ng, Jason Q.; Crete-Nishihata, Masashi (December 2016). "One App, Two Systems". figure 9. Archived from the original on 10 October 2019. Retrieved 30 September 2019.
Ruan, Lotus; Knockel, Jeffrey; Ng, Jason Q.; Crete-Nishihata, Masashi (December 2016). "One App, Two Systems". figure 9. Archived from the original on 10 October 2019. Retrieved 30 September 2019.