<SINGARIMBUN, M. Pedoman praktis membuat usulan penelitian. Ghalia Indonesia.
Chicago Style (17th ed.) Citation<SINGARIMBUN, Masri>. Pedoman Praktis Membuat Usulan Penelitian. Ghalia Indonesia.
MLA (8th ed.) Citation<SINGARIMBUN, Masri>. Pedoman Praktis Membuat Usulan Penelitian. Ghalia Indonesia.
Warning: These citations may not always be 100% accurate.