Owuor, P., Caleb Othieno, David Kamau, John Wanyoko, and Wilson Ng’etich. “LONG TERM FERTILIZER USE ON HIGH YIELDING CLONE S 15/10 TEA: YIELDS”. International Journal of Tea Science 7, no. 01 and 02 (August 31, 2008): 19-31. Accessed August 1, 2025. https://teascience.in/index.php/ijts/article/view/196.