Bidding model for sustainable projects using the traditional procurement method YJ Gandu, AA Ali, OG Chindo Information Manager (The) · Volume 9, Issue 2 (2011) DOI: 10.4314/tim.v9i2.63663 Abstract No abstract Article information Published16 February 2011 Languageen PublisherAfrican Journals Online (AJOL) LicenseNo license URL DOI10.4314/tim.v9i2.63663 Journal ISSN1596-5422