The program "Build a Strong Core" : http://school.innerfrench.com/ The podcast Intermediate French : https://innerfrench.com/ The guide 198 Expressions to better understand spoken French (with audio) : https://www.innerfrench.com/frenchphrases Influence of the native language on learning foreign languages : Ringbom, H. 1986. 'Crosslinguistic influence and the foreign language learning process' Kellerman, E. 1986. 'An eye for an eye: Crosslinguistic constraints on the development of the L2 lexicon' White, L. 1991. 'Adverb placement in second language acquisition: Some effects of positive and negative evidence in the classroom.'