Noraidah Ismail. (1997). A study of masking level difference (MLD) in subjects with sensorineural hearing loss at various masker presentation levels. School of English, Linguistics and Media, Macquarie University.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Noraidah Ismail. A Study of Masking Level Difference (MLD) in Subjects with Sensorineural Hearing Loss at Various Masker Presentation Levels. Sydney: School of English, Linguistics and Media, Macquarie University, 1997.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Noraidah Ismail. A Study of Masking Level Difference (MLD) in Subjects with Sensorineural Hearing Loss at Various Masker Presentation Levels. School of English, Linguistics and Media, Macquarie University, 1997.
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