Journal Article
Sit, Pou-seong, Kwok-cheung Cheung, Wai-cheong Cheong, Soi-kei Mak, Kay-cheng Soh, and Man-kai Ieong.
"What studying problems are faced by the adolescent grade repeaters in Macao: uncovering underlying mechanisms based on evidences from the PISA 2012 Study." Asia Pacific Education Review 16, no. 3 (2015): 367-377.