Gaya APA

SILALAHI, D, E. (2015). Students' comprehension on metaphorical ecpression of english department at FKIP Universitas HKBP Nommensen Pematang Siantar . Medan: Universitas HKBP Nommensen.

Gaya MLA

SILALAHI, Dumaris, E. "Students' comprehension on metaphorical ecpression of english department at FKIP Universitas HKBP Nommensen Pematang Siantar". Medan: Universitas HKBP Nommensen, 2015. Artikel.