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| 041 | 0 | _aspa | |
| 082 | 0 | 4 | _aLA.038 |
| 100 | 1 | _aGonzález Guerra Karol Stephanie | |
| 245 | 4 | _aThe phonological factor in the pronunciation of vowel sounds in the first level senior high school students from “María Auxiliadora” School, 2018 | |
| 250 | _aEcuador,: PUCESE- Escuela de Lingüística Aplicada , 2019 | ||
| 264 |
_aEcuador , _c2019 |
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| 300 |
_aix, 52 p. ; _c CD |
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| 336 | _atxt | ||
| 337 | _an | ||
| 338 | _anc | ||
| 650 | 0 | 4 | _aFACTOR FONOLÓGICO / PRONUNCIACIÓN / SONIDO DE LAS VOCALES / VOCALES REDONDEADAS / EFL |
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