@BOOKLET {BALOGUN:2020, title = {Evolvement and advances in the hydroponics system for clean seed yam production: YIIFSWA working paper series No. 9}, author = {Balogun, M. and Maroya, N. and Aighewi, B. and Chukwunalu, O. and Ajayi, A. and Taiwo, J. and Kumar, P. L. and Mignouna, D. and Asiedu, R. }, year = {2020}, address = {Ibadan, Nigeria}, howpublished = {YIIFSWA working paper series}, note = {WAHub; Science Area BPB; SSAB; RTB; Yam; 15p.; ISBN: 978-978-131-371-4}, }