Validasi media pembelajaran "apel angka inggris dan geometri ...
Author : Rismawasari, Fajria. Publisher : ...... Some phonological problems and 
remedial exercises in teaching English to Toba Batak students / F. Peris Lubis.							
Author : Rismawasari, Fajria. Publisher : ...... Some phonological problems and 
remedial exercises in teaching English to Toba Batak students / F. Peris Lubis.