"EFKK Kokkola-Pietarsaari"(PDF). AIP Suomi / Finland. Vantaa: Finavia. 13 December 2012. pp. EFKK AD 2.1, 1–12. Archived from the original(PDF) on 10 August 2016. Retrieved 14 July 2013.
"EFKK Kokkola-Pietarsaari"(PDF). AIP Suomi / Finland. Vantaa: Finavia. 13 December 2012. pp. EFKK AD 2.1, 1–12. Archived from the original(PDF) on 10 August 2016. Retrieved 14 July 2013.