Alhabshi, H., & Suat Hui, L. (1988). Secondary school geography: Express course (1. publ. 1986, repr.). Pan Pacific Book Distributors Curriculum Development Institute of Singapore.
Citazione stile Chigago Style (17a edizione)Alhabshi, Hashim, e Lee Suat Hui. Secondary School Geography: Express Course. 1. publ. 1986, repr. Singapore: Pan Pacific Book Distributors Curriculum Development Institute of Singapore, 1988.
Citatione MLA (9a ed.)Alhabshi, Hashim, e Lee Suat Hui. Secondary School Geography: Express Course. 1. publ. 1986, repr. Pan Pacific Book Distributors Curriculum Development Institute of Singapore, 1988.
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