1. Mitchell, B.: Introduction to the Internet of Things.
https://www.lifewire.com/introduction-to-the-internet-of-things-81776
. Assessed 26 Sept 2019
2. Muntjir, M., Rahul, M., Alhumyani, H.A.: An analysis of Internet of Things (IoT): novel architectures, modern applications, security aspects and future scope with latest case studies. Int. J. Eng. Res. Technol. 6(2), 422–427 (2017)
3. Storey, H.: The industrial Internet of Things. Consult.-Specif. Eng. 15(5), 1–4
4. Chan, B.: IoT for all.
https://www.iotforall.com/iot-vs-industrial-iot-differences-that-matter/
. Assessed 16 Jan 2019
5. Chamber of Mines South Africa: Facts and Figures. Chamber of Mines, Johannesburg.
https://www.mineralscouncil.org.za/industry-news/publications/facts-and-figures/send/17-facts-and-figures/442-facts-and-figures-2016
. Assessed 26 Sept 2019