TY  - BOOK
AU  - Yuma, Chansa
TI  - The impact of the introduction of Chingovwa (improved sweet potato cultivars) on the local cultivars in Ndola district: / by Chansa Yuma
AV  - CBU-UG THESIS/YUM 
PY  - 2012///
CY  - Kitwe : 
PB  - Copperbelt University, 
KW  - SWEET POTATOES - VARIETIES - AFRICA, SUB-SAHARAN
KW  - ROOT CROPS
KW  - FOOD CROP DIVERSIFICATION--ZAMBIA
ER  -