D. M. Varisco and Warner, D. B.,
“Feasibilty of handpump installation and manufacture in the Yemen Arab Republic”, vol. no. 224. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. ix, 81 p.: fig., tab., photogr., 1988.
J. Buringa,
“Women in the Yemen Arab Republic : a selected and annotated bibliography”. Netherlands, Ministry of Foreign Affairs, DGIS, The Hague, The Netherlands, p. 77 p., 1988.
J. Buringa,
“Yemeni women in transition : how development cooperation could fit in”. Netherlands, Ministry of Foreign Affairs, DGIS, The Hague, The Netherlands, p. 104 p., 1988.