I. M.  van Waveren, Iskandar, E. P. A., Booi, M., and Van Cittert, J. H. A.  van, ?Composition and palaeogeographic position of the Early Permian Jambi flora from Sumatra?, Scripta Geologica, vol. 135, pp. 1-28, 2007.

I. M.  van Waveren, Hasibuan, F., ,, ,, de Boer, P. L., Chaney, D. S., Ueno, K., Booi, M., Iskandar, E. P. A., King, C. I., ,, and Van Cittert, J. H. A.  van, ?Taphonomy, palaeobotany and sedimentology of the Mengkarang Formation (Early Permian, Jambi, Sumatra, Indonesia)?, The Nonmarine Permian.New Mexico Museum of Natural History and Science Bulletin, vol. 30, pp. 333-341, 2005.

M.  Booi, van Waveren, I. M., and Van Cittert, J. H. A.  van, ?The Jambi gigantopterids and their place in gigantopterid classification?, Botanical Journal of the Linnean Society, vol. 161, pp. 302-328, 2009.

M.  Booi, van Waveren, I. M., and Van Cittert, J. H. A.  van, ?Comia and Rhachiphyllum from the Early Permian of Sumatra, Indonesia?, Review of Palaeobotany and Palynology, vol. 156, pp. 418-435, 2009.

M.  Booi, van Waveren, I. M., Van Cittert, J. H. A.  van, and de Boer, P. L., ?New material of Macralethopteris from the Early Permian Jambi flora (Middle Sumatra, Indonesia) and its palaeoecological implications?, Review of Palaeobotany and Palynology, vol. 152, no. 3-4, pp. 101-112, 2008.