1. European Monitoring Centre for Drugs and Drug Addiction (EMCDDA), European Drug Report 2020- Trends and Developments. https://www.emcdda.europa.eu/system/files/publications/13236/TDAT20001ENN_web.pdf, 2020 (accessed on 4 May 2022).
2. Drug policy and global regulatory capitalism: The case of new psycoactive substances (NPS);Sheddon;J. Drug Policy,2014
3. United Nations Office on Drugs and Crime (UNODC), World drug report 2017—market analysis of synthetic drugs: amphetamine-type stimulants, new psychoactive substances. https://www.unodc.org/documents/scientifc/Booklet_4_Market_Analysis_of_Synthetic_Drugs_ATS_NPS.pdf, 2017 (accessed on 4 May 2022).
4. United Nations Office on Drugs and Crime (UNODC), Global SMART update—understanding the synthetic drug market: the NPS factor. https://www.unodc.org/documents/scientific/Global_Smart_Update_2018_Vol.19.pdf, 2018 (accessed on 5 May 2022).
5. United Nations Office on Drugs and Crime (UNDOC), Drug World Report- 4th Cross-cutting issues: Evolving trends and new challenges. https://wdr.unodc.org/wdr2020/field/WDR20_BOOKLET_4.pdf, 2020 (accessed on 6 May 2022).