- Teacher: John Barker
- Teacher: Mangatas Halomoan Parluhutan Hutagalung
- Teacher: Aqwam Sakinata Lubis
- Teacher: John Barker
- Teacher: Mourent Miftahullaila
- Teacher: John Barker
- Teacher: Novelya Novelya
- Teacher: Wilson Arthur Zein
- Teacher: Ferianny Prima
- Teacher: Wilson Wilson
- Teacher: Suci Erawati
- Teacher: Mangatas Halomoan Parluhutan Hutagalung
- Teacher: Idamawati Idamawati
- Teacher: Aqwam Sakinata Lubis
- Teacher: John Barker
- Teacher: Mourent Miftahullaila
- Teacher: Novelya Novelya