1. https://eric.ed.gov/?id=EJ1342270#:~:text=Results%20collected%20from%20this%20experiment,native%20language%20and%20target%20language
2. https://www.researchgate.net/publication/331966738_The_Effects_of_Mnemonic_Vocabulary_Instruction_on_Content_Vocabulary_Learning_of_Students
3. https://rdw.rowan.edu/cgi/viewcontent.cgi?article=3569&context=etd
4. https://repository.iainpare.ac.id/id/eprint/1449/1/15.1300.131.pdf
5. https://latinjournal.org/index.php/gist/article/view/1042
6. https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2022.783898/full
7. https://core.ac.uk/download/pdf/296307166.pdf