Brusilovsky, Peter, Malmi, Lauri, Hosseini, Roya, Guerra, Julio, Sirkiä, Teemu, and Pollari-Malmi, Kerttu. An integrated practice system for learning programming in Python: design and evaluation. Retrieved from https://par.nsf.gov/biblio/10112101. Research and Practice in Technology Enhanced Learning 13.1 Web. doi:10.1186/s41039-018-0085-9.

Brusilovsky, Peter, Malmi, Lauri, Hosseini, Roya, Guerra, Julio, Sirkiä, Teemu, & Pollari-Malmi, Kerttu. An integrated practice system for learning programming in Python: design and evaluation. Research and Practice in Technology Enhanced Learning, 13 (1). Retrieved from https://par.nsf.gov/biblio/10112101. https://doi.org/10.1186/s41039-018-0085-9

Brusilovsky, Peter, Malmi, Lauri, Hosseini, Roya, Guerra, Julio, Sirkiä, Teemu, and Pollari-Malmi, Kerttu. "An integrated practice system for learning programming in Python: design and evaluation". Research and Practice in Technology Enhanced Learning 13 (1). Country unknown/Code not available. https://doi.org/10.1186/s41039-018-0085-9. https://par.nsf.gov/biblio/10112101.

@article{osti_10112101,
place = {Country unknown/Code not available}, title = {An integrated practice system for learning programming in Python: design and evaluation}, url = {https://par.nsf.gov/biblio/10112101}, DOI = {10.1186/s41039-018-0085-9}, abstractNote = {}, journal = {Research and Practice in Technology Enhanced Learning}, volume = {13}, number = {1}, author = {Brusilovsky, Peter and Malmi, Lauri and Hosseini, Roya and Guerra, Julio and Sirkiä, Teemu and Pollari-Malmi, Kerttu}, }