Fedorenko RV, Persteneva NP, Konovalova ME, Tokarev YA. Research of the Regional Service Market in Terms of International Economic Activity’s Customs Registration. IJEFI [Internet]. 2016 Aug. 13 [cited 2024 Dec. 23];6(5S):136-44. Available from: https://econjournals.com./index.php/ijefi/article/view/2878