Gaya APA
Dumont, T, Q., Qadria, L.
(2019).
The Power of Concentration
.
Yogyakarta:
Bright Publisher.
Gaya MLA
Dumont, Theron, Q.., Qadria, Laila.
"The Power of Concentration".
Yogyakarta:
Bright Publisher,
2019.
Text.