Ramírez Salas, M. (2004). English Teachers as materials developers. Universidad de Costa Rica.
Cita Chicago Style (17a ed.)Ramírez Salas, Marlene. English Teachers as Materials Developers. Universidad de Costa Rica, 2004.
Cita MLA (9a ed.)Ramírez Salas, Marlene. English Teachers as Materials Developers. Universidad de Costa Rica, 2004.
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