Hardiza Dato' Hj Daud. (2004). Language games: The use and effectiveness in promoting speaking among students in a secondary school in Selangor. Fakulti Sains Sosial dan Kemanusiaan, Universiti Kebangsaan Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Hardiza Dato' Hj Daud. Language Games: The Use and Effectiveness in Promoting Speaking Among Students in a Secondary School in Selangor. Bangi: Fakulti Sains Sosial dan Kemanusiaan, Universiti Kebangsaan Malaysia, 2004.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Hardiza Dato' Hj Daud. Language Games: The Use and Effectiveness in Promoting Speaking Among Students in a Secondary School in Selangor. Fakulti Sains Sosial dan Kemanusiaan, Universiti Kebangsaan Malaysia, 2004.
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