“…(Addo, 1996), (Amoako-Gyampah, 2003), (Buckley, 1997), (Chand and Moene, 1999), (Chudy, 1994), (Fred-Mensah, 1999), (Ingram and Pearson, 1981), (Lall, 1995), ( Paul, 2005), ( Pickett et al, 1974). (Asiedu and Chen, 1997), (Atta-Konadu and Chen, 1999), (Bergey et al, 2003a), (Bergey et al, 2003b), (Nassen et al, 2002). (Bach, 1999).…”