Gaya APA
Sa'adah, R, N., Wahyu, . (2020).
Metode Penelitian R&D (Research and Development) (Cet. II).
Batu:
Literasi Nusantara.
Gaya MLA
Sa'adah, Risa, Nur., Wahyu, .
"Metode Penelitian R&D (Research and Development)".
Cet. II
Batu:
Literasi Nusantara,
2020.
Text.