Gaya APA
Ghufron, M, A. (2016).
Academic writing: ELT research paper writing (Cetakan pertama).
Yogyakarta:
Penerbit Deepublish.
Gaya MLA
Ghufron, M., Ali.
"Academic writing: ELT research paper writing".
Cetakan pertama
Yogyakarta:
Penerbit Deepublish,
2016.
Text.