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Author : Tohiriyaningsih, Eka Yunindah ...... Some phonological problems and 
remedial exercises in teaching English to Toba Batak students / F. Peris Lubis.							
Author : Tohiriyaningsih, Eka Yunindah ...... Some phonological problems and 
remedial exercises in teaching English to Toba Batak students / F. Peris Lubis.