Madina, P. and Ogah, J.J. 2023. PRODUCTIVITY OF LIVING STONE POTATO (Plectranthus esculentus L.) AS INFLUENCED BY ROW SPACING AND NUTRIENT SOURCES IN BILLIRI, GOMBE STATE, NIGERIA. FUDMA Journal of Sciences. 3, 2 (Apr. 2023), 39–51. DOI:https://doi.org/10.33003/.