Dahlin, J., Kanui, T.I., Wambugu, S.N. and Abelson, K.S.P. 2012. The Suspended Formalin Test: A Method Designed for Studying Formalin-Induced Behaviour in the Speke’s Hingeback Tortoise (Kinixys spekii). Scandinavian Journal of Laboratory Animal Science. 39, 1 (Dec. 2012), 11–15. DOI:https://doi.org/10.23675/sjlas.v39i1.245.