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Univ Maine, Coll Educ & Human Devevlopment, Sch Learning & Teaching, Orono, ME 04469 USA
Univ Free State, Dept South African Sign Language & Deaf Studies, Bloemfontein, South Africa Univ Maine, Coll Educ & Human Devevlopment, Sch Learning & Teaching, Orono, ME 04469 USA