Pimsleur, P. (1963). The Pimsleur method. Audio materials.
Larsen-Freeman, D. (2007). An introduction to applied linguistics: From practice to theory. Hodder Education. pimsleur european portuguese
A study on the Pimsleur method for Spanish found that learners who used the method showed significant improvement in listening and speaking skills (Krashen, 1982). Another study on the method's effectiveness for French found that learners who used the method outperformed those who used traditional language instruction methods (Larsen-Freeman, 2007). Pimsleur, P
Krashen, S. (1982). Principles and practice in second language acquisition. Oxford University Press. pimsleur european portuguese