Ngai, Steven Sek-yum, Chau-kiu Cheung, Hon-yin Tang, Hiu-lam Ngai, Yuen-hang Ng, Wang Lin, Lifen Zhao and Oh, Stephanie Wing-yen. 2019. Final Report on Self-help Organizations in Hong Kong: An Exploration of Model Development and Best Practices. Hong Kong, China: Hong Kong Society for Rehabilitation.
Cheung, Chau-kiu, Ching-man Lam, and Steven Sek-yum Ngai. 2008. “Help from the Parent-Teacher Association to Parenting Efficacy: Beyond Social Status and Informal Social Capital.” Journal of Socio-Economics 37:1138-1152.