作者
Andrew (University of Johannesburg Ebekozien South Africa),Clinton Ohis (University of Johannesburg Aigbavboa South Africa),Wellington Didibhuku (University of Johannesburg Thwala South Africa)
（1）
Ayodeji Oke,Stephen Segun,Clinton (University of Johannesburg Aigbavboa South Africa),Wellington Didibhuku (University of Johannesburg Thwala South Africa)
（1）
Clinton Aigbavboa/ Wellington Thwala
（1）
Douglas Aghimien,Clinton (University of Johannesburg Aigbavboa South Africa),Ayodeji Oke,Wellington (University of Johannesburg Thwala South Africa)
（1）
Douglas Aghimien,Clinton Aigbavboa (University of Johannesburg South Africa),Ayodeji Oke (Federal University of Technology Akure Nigeria),Wellington Thwala (University of Johannesburg South Africa)
（1）
George Okechukwu (University of Johannesburg Onatu South Africa),Wellington (University of South Africa (UNISA) Didibhuku Thwala South Africa),Clinton Ohis (University of Johannesburg Aigbavboa South
（1）
John Aliu,Clinton Aigbavboa (University of Johannesburg South Africa),Wellington Thwala (University of Johannesburg South Africa)
（1）
Matthew Kwaw Somiah,Clinton (University of Johannesburg Aigbavboa South Africa),Wellington (Department of Construction Management and Quantity Surveying Thwala University of Johannesburg South Africa)
（1）
Matthew Kwaw Somiah,Clinton Ohis Aigbavboa (University of Johannesburg South Africa),Wellington Thwala (University of Johannesburg South Africa)
（1）
Mpho Ndou,Clinton Ohis (University of Johannesburg Aigbavboa South Africa),Wellington Didibhuku (University of Johannesburg Thwala South Africa),Abdul-Majeed Mahamadu
（1）
Samuel Adekunle,Clinton Ohis (University of Johannesburg Aigbavboa South Africa),Obuks Ejohwomu,Wellington Didibhuku (University of Johannesburg Thwala South Africa),Abdul-Majeed Mahamadu
（1）
Simon Ofori (Koforidua Technical University Ametepey Ghana),Clinton Ohis (University of Johannesburg Aigbavboa South Africa),Wellington Didibhuku (University of South Africa Thwala South Africa)
（1）
Zakari Mustapha/ Clinton Aigbavboa/ Wellington Thwala
（1）
；Aigbavboa, Clinton,Mojekwu, Joseph N.,Thwala, Wellington Didibhuku,Atepor, Lawrence,Adinyira, Emmanuel,Nani, Gabriel,Bamfo-Agyei, Emmanuel
（1）
；Clinton Aigbavboa, Aigbavboa,Wellington Thwala, Thwala,Douglas Aghimien, Aghimien
（1）
