Wilkinson, Derek (Spring 1989). "The Sudbury School Strike – The Effect on Students One Year After". Interchange. 20 (1): 27–37. doi:10.1007/BF01808329. S2CID144761182.
Wilkinson, Derek (Spring 1989). "The Sudbury School Strike – The Effect on Students One Year After". Interchange. 20 (1): 27–37. doi:10.1007/BF01808329. S2CID144761182.