@gianna - Note also that most all Basenjis are born in the winter months, it is very rare that there are litters in the spring/summer. Basenjis only come in season once a year and typically all around the same time.
It Took Me 1.5 years of looking and talking to breeders before I was able to get on the waiting list in time to get a pup. You have to start preparing and talking to breeders in the early fall in order to get on the reservation list for a puppy by next spring
The Basenji Klub Deutschland has a website - otherwise, email me privately for some addresses. You could be too late for this season's crop though you can get on a list for next winter.
The Basenji Meetup in New York City has a list of breeders who provided dogs to members. You can find it at: http://www.meetup.com/basenji-nyc/pages/Breeders/.