Gaya APA
Sinaga, D. (2022).
Extra Ordinary Leadership 4.0 : I can't change yesterday but I can change today .
Yogyakarta:
Lautan Pustaka.
Gaya MLA
Sinaga, Derman.
"Extra Ordinary Leadership 4.0 : I can't change yesterday but I can change today".
Yogyakarta:
Lautan Pustaka,
2022.
Text.