インプット仮説
191, ISBN 0-88084-005-6
Krashen, S.D. (1985), The Input Hypothesis: Issues and Implications, New York: Longman
Krashen, S.D. (1989), We acquire vocabulary and spelling by reading: additional evidence for the input hypothesis, Modem Language Journal, 73, n04, pp. 440–464
Krashen, S.D. (1994), The input hypothesis and its rivals, Implicit and Explicit Learning of Languages, Academic Press, London: Ellis, N, pp. 45–77, CiteSeer: 10.1.1.121.728
Krashen, S.D. (1996), The case for narrow listening System 24(1): 97-100
Krashen, S.D. (2003), Explorations in Language Acquisition and Use, Portsmouth: NH: Heinemann., https://www.academia.edu/download/32202497/chapter2.pdf
Krashen, S.D.; Terrell, T.D.