Warui, Mary Wanjiru, et al. “Pollination of Acacia Woodlands and Honey Production by Honey Bees in Kitui, Kenya”. Future of Food: Journal on Food, Agriculture and Society, vol. 6, no. 1, Dec. 2018, pp. 40-50, https://thefutureoffoodjournal.com/manuscript/index.php/FOFJ/article/view/9.