Turner, I.M. and Newton, A., 1990. The initial responses of Malaysian rain forest tree seedlings to a large gap environment. Journal of Applied Ecology, 27 (2), pp. 605-608.

Leakey, R.R.B., Mesen, J.F., Tchoundjeu, Z., Longman, K.A., Dick, J M.., Newton, A., Matin, A., Grace, J., Munro, R.C. and Muthoka, P.N., 1990. Low-technology techniques for the vegetative propagation of tropical trees. Commonwealth Forestry Review, 69 (3), pp. 247-257.

Newton, A., 1990. Mejoramiento para obtener resistencia a plagas y enfermedades. In: Cornelius, J.P., Mesen, F. and Corea, E., eds. Primer Curso Corto Sobre Mejoramiento Genetico Forestal. Turialba, Costa Rica.: CATIE.