Ardian, S., B., Syah, P., N., C. (2014). Tenses Vocabulary and Conversation For Nursing . : Penerbit IN MEDIA.

Saputra, Budi, Ardian., Putra, Ns., Candra, Syah. "Tenses Vocabulary and Conversation For Nursing". : Penerbit IN MEDIA, 2014. Textbook.