Müller, 1977. In: Cassava as animal feed. Proceeding, Cassava as animal feed Workshop, Nestel, B.; Graham, M. 18-20 april 1977 University of Guelph, Ontario, Canada. IDRC: Ottawa, 120-126

Müller, Z. O., 1977. Improving the quality of cassava root and leaf product technology. In: Cassava as animal feed. Proceeding, Cassava as animal feed Workshop, Nestel, B.; Graham, M. 18-20 april 1977 University of Guelph, Ontario, Canada. IDRC: Ottawa, 120-126