Goodman, Robert, Meltzer, Herbert, & Bailey, Vanessa. (1998). The Strengths and Difficulties Questionnaire: A pilot study on the validity of the self-report version. European child & adolescent psychiatry, 7(3), 125-130.
Lau, Yuk King, and Glenn Stone. (2018). “Difficult But Possible”: Evaluation study on the effectiveness of the co-parenting supportive service for divorced families in Hong Kong. Hong Kong: The Hong Kong Catholic Marriage Advisory Council.