Wescott, William, A.; John, N. Diggens (1998). »Depositional history and stratigraphical evolution of the Sakamena group (Middle Karoo Supergroup) in the southern Morondava Basin, Madagascar«. Journal of African Earth Sciences. 27 (3–4): 461–479. Bibcode:1998JAfES..27..461W. doi:10.1016/S0899-5362(98)00073-6.
Świerkosz, Krzysztof (2012). »Vegetation of southern part of the Isalo Sandstone Massif (Central Madagascar, Africa) – differentiation and threats«. V Hartel H.; Cilek V.; Hebren T. A. Jackson; R. Williams (ur.). Sandstone Landscapes. doi:10.6084/m9.figshare.92596.
Wescott, William, A.; John, N. Diggens (1998). »Depositional history and stratigraphical evolution of the Sakamena group (Middle Karoo Supergroup) in the southern Morondava Basin, Madagascar«. Journal of African Earth Sciences. 27 (3–4): 461–479. Bibcode:1998JAfES..27..461W. doi:10.1016/S0899-5362(98)00073-6.