Odebode, A C. 1996. “Phenolic Compounds in the Kola Nut (<i>Cola nitida</i> and <i>Cola acuminata</i≫) (Sterculiaceae) in Africa”. Revista De Biología Tropical 44 (2A):513–515. https://revistas.ucr.ac.cr/index.php/rbt/article/view/21640.