Gaya APA

BABATUNDE,S.O, . et al (2010). An appraisal of project procurement methods in the Nigerian construction industry . Surabaya: Petra Christian University.

Gaya MLA

BABATUNDE,S.O, . et al. "An appraisal of project procurement methods in the Nigerian construction industry". Surabaya: Petra Christian University, 2010. Artikel.