And you can also check an old article of Coetzer et al. (2003) "The development of a Holistic, Community Based Neurorehabilitation Service in a Rural Area"
The most effective peer reviewed published research is activation database guided EEG biofeedback. Obtains an average of 1.78 standard deviation improvements in memory functioning in a group of 81 subjects (brain injured, learning disability, normals)
Haskins, E. C., Cicerone, K., Dams-O'Connor, K., Eberle, R., Langenbahn, D., & Shapiro-Rosenbaum, A. (2012). Cognitive Rehabilitation Manual: Translating evidence-based recommendations into practice (1 ed.). Reston, Virgina: ACRM Publishing.
The cognitive rehabilitation for mild-moderate TBI require, preliminarily, as for every cognitive rehabilitation program in general, a good assessment of individual cognitive functions, that in these cases must include the assessment of attentional components, memory components, executive functions and behavioural modification.
The rehabilitation program requires an intervention, in a hierarchic and at the same time interconnected modality, on the dysfunctions observed.
I suggest to you read the articles of Cicerone et al. on Archives of Physical and Medical Rehabilitation 2005 and Neuropsychology 2009 (Effectiveness of Cognitive Rehabilitation Following Acquired Brain Injury: A Meta-Analytic Re-Examination of Cicerone et al.’s (2000, 2005); Systematic Reviews; but some books on neuropsychological rehabilitation practice could be more useful; many have been published from 2000 to 2014
I published a book (3 editions from 1999 to 2013) on these topics, but unfortunately it is in Italian (la Riabilitazione Neuropsicologica, Elsevier 2013)
Some people like using Trevor Powell's book: The Brain Injury Workbook, Exercises for Cognitive rehabilitation.
I would also look however at setting up a more individualised functional protocol:
CLARK WILSON, GILES, BAXTER 2014: Revisiting the neurofunctional approach: Conceptualizing the core components for the rehabilitation of everyday living skills. Brain Injury, 28. 1646 -1656
This can help identify specific functional issues rather than abstract ones and support community reintegration accordingly.
none of these approaches work very well, Cicerone's article cherry picked the best responses and presented them as characteristic of the effectiveness of the approach
cog med's research, although better, had only one TBI in their group
I suggest you to read the updating meta-analysis of Cicerone et al. (2011) :
Arch Phys Med Rehabil. 2011 Apr;92(4):519-30. doi: 10.1016/j.apmr.2010.11.015.
Evidence-based cognitive rehabilitation: updated review of the literature from 2003 through 2008.
Cicerone KD1, Langenbahn DM, Braden C, Malec JF, Kalmar K, Fraas M, Felicetti T, Laatsch L, Harley JP, Bergquist T, Azulay J, Cantor J, Ashman T.
In practice, I used a cognitive remediation program on computer called Cogni Plus, with people with severe TBI and they improved their cognitive performance after 1 month of remediation.