Gaya APA
PURWANIGTYAS, E, M, &, I.
(2020).
EXPLORING ENGLISH MORPHOLOGY
.
Malang:
UB PRES.
Gaya MLA
PURWANIGTYAS, ENI, MAHARSI, &, ISTI.
"EXPLORING ENGLISH MORPHOLOGY".
Malang:
UB PRES,
2020.
Textbook.