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    Noise Levels in Malaysia primary schools: are we meeting the international standards? by Ismail, Noraidah, Karim, Khairnai, Othman, Nur Ain

    Published 2020
    “…The results showed that the noise levels of occupied and unoccupied classrooms were higher than the values recommended by the World Health Organization (WHO) which are 35 dB(A) and 55 dB(A) respectively. The findings showed that the measured noise levels in the classrooms were high enough that it might interfere the effectiveness of teaching and learning among students and teachers. …”
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