I

Idaryani, S.S., M. TESOL (2015) (E-BOOK): BAHASA INGGRIS UNTUK PERGURUAN TINGGI. Unimal Press, Jl. Sulawesi No.1-2 Kampus Bukit Indah Lhokseumawe 24351. ISBN 978-602-1373-37-8

J

Jeremy, Harmer (1998) (E-BOOK): TECH ENGLISH. Addison Wesley Longman Limited 1998. ISBN 0582-29796-6

M

Mukti, Nanjar Tri (2019) (E-BOOK): KAMUS BAHASA INGGRIS. EPISENTRUM BOOKS.

Murphy, Raymond (2019) (E-BOOK): ENGLISH GRAMMAR IN USE. Cambridge University Press. ISBN 978-1-108-45771-2

S

Springer (2013) (E-BOOK): ENGLISH FOR ACADEMIC WRITING RESEARCH. Springer. ISBN 978-1-4614-4298-1

Swan, Michael (2005) (E-BOOK): PRACTICAL ENGLISH USAGE. OXFORD UNIVERSITY PRESS. ISBN 978-0-19-442099-0