Jenkinson, Denis (May 1980). "Notes on the cars at Long Beach". Motor Sport. LVI (5). Motor Sport Magazine Ltd.: 662. Archived from the original on 30 July 2021. Retrieved 30 July 2021.
Jenkinson, Denis (October 1980). "Notes on the cars at Zandvoort". Motor Sport. LVI (10). Motor Sport Magazine Ltd.: 1488. Archived from the original on 30 July 2021. Retrieved 30 July 2021.
Jenkinson, Denis (May 1982). "The Formula One scene". Motor Sport. LVIII (5). Motor Sport Magazine Ltd.: 555. Archived from the original on 30 July 2021. Retrieved 30 July 2021.
speedracing.com.br
Miranda, Robson (24 October 2012). "F1 Historic: Joaquin Folch é o Campeão de 2012" [F1 Historic: Joaquin Folch is the 2012 Champion] (in Portuguese). SpeedRacing. Archived from the original on 30 July 2021. Retrieved 30 July 2021.
web.archive.org
Jenkinson, Denis (May 1980). "Notes on the cars at Long Beach". Motor Sport. LVI (5). Motor Sport Magazine Ltd.: 662. Archived from the original on 30 July 2021. Retrieved 30 July 2021.
Jenkinson, Denis (October 1980). "Notes on the cars at Zandvoort". Motor Sport. LVI (10). Motor Sport Magazine Ltd.: 1488. Archived from the original on 30 July 2021. Retrieved 30 July 2021.
Jenkinson, Denis (May 1982). "The Formula One scene". Motor Sport. LVIII (5). Motor Sport Magazine Ltd.: 555. Archived from the original on 30 July 2021. Retrieved 30 July 2021.
Miranda, Robson (24 October 2012). "F1 Historic: Joaquin Folch é o Campeão de 2012" [F1 Historic: Joaquin Folch is the 2012 Champion] (in Portuguese). SpeedRacing. Archived from the original on 30 July 2021. Retrieved 30 July 2021.