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1
المصدر: International Journal of Vocational and Technical Education Research. 8:9-29
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2
المصدر: International Journal of Vocational and Technical Education Research. 8:43-59
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3
المؤلفون: Samuel Adentwi Bentum, Mercy Gyamea Atiemoh
المصدر: International Journal of Vocational and Technical Education Research. 8:23-38