xivAnita Veltmaat and Gonny Lakerveld from the University of Groningen, Dr. Montanus
Milanzi, Mr. Rashid Mfaume, Mrs. Saida Fundi and Anita Kinolo from Mzumbe Uni-
versity. Thank you very much for the encouragement and logistical support. Others are
my colleagues from Mzumbe University with whom we have been working together to
write books to give Northern concepts, theories and principles some African flavour.
These are Dr. Richard Gellejah and Dr. Martin Mpamila Madale; thank you very much
for sharing the experience.
Lastly, but not least are my dear wife Voyness, and our dear children Divine, Gladys
and Neema and my young sister Lucy who had to bear with me and share part of sleep-
less nights during the writing of the book. These individuals have constantly been en-
couraging and supporting me to the last moment. Thank you very much for the under-
standing and perseverance.