Mukanda Sphere Kikongo : Kuwakana yina bimvuka salaka mpi Bansiku ya fioti-fioti ya bimvuka ya ke kwendaka kupesa lusadisu na bantu ya kele na mpasi (Paperback, 4 ed)
Mukanda Wa Sphere Tshiluba : Tshibungu tshia malu a diambuluisha bantu badi bakenga ne Mikenji ya nshindamenu mu diambuluisha bantu badi bakenga (Paperback, 4 ed)