Gaya APA
Yusuf, T. (1985).
Pedoman Penyusunan Research Proposal .
Bandar Lampung:
Lembaga Research and Survey IAIN Rd Intan.
Gaya MLA
Yusuf, Takar.
"Pedoman Penyusunan Research Proposal".
Bandar Lampung:
Lembaga Research and Survey IAIN Rd Intan,
1985.
Text.