D. Gyabaah, Awuah, E., y Ackerson, N. O. B.,
«Sanitation in basic schools : a case study in Tano South district : paper prepared for the West Africa Regional Sanitation and Hygiene Symposium, 10-12 Nov 2009, Accra, Ghana», presented at the 2009-11-10, S.l., 2009, p. 9 p.; 8 refs.; 1 tab.; 1 fig.
