| Web and Mobile UI I Monoweight Line Styled icon set, by Creative Cube, dated Dec. 30, 2015, iconfinder.com [online]. Retrieved Aug. 26, 2021 from internet <URL:https://www.iconfinder.com/iconsets/web-and-mobile-ui-outline-icon-kit> (Year: 2015). |
| 176 iOS optimized—Material Design Outline Core icon set, by Tim Neumann, dated Mar. 3, 2018, iconfinder.com [online]. Retrieved Aug. 27, 2021 from internet <URL:https://www.iconfinder.com/iconsets/176-material-design-outline-core> (Year: 2018). |
| Zondicons icon set, by Steve Schoger, dated Sep. 14, 2018, iconfinder.com [online]. Retrieved Aug. 26, 2021 from internet <URL:https://www.iconfinder.com/iconsets/zondicons> (Year: 2018). |
| Closed lock icon in vector square symbol, by architect.aleks, dated Jan. 19, 2015, depositphotos.com [online]. Retrieved Aug. 26, 2021 from internet <URL:https://depositphotos.com/62668349/stock-illustration-closed-lock-icon.html> (Year: 2015). |
| Amusement Park icon set, by ProSymbols, dated Oct. 30, 2018, iconfinder.com [online]. Retrieved Sep. 2, 2021 from internet <URL: https://www.iconfinder.com/iconsets/amusement-park-15> (Year: 2018). |
| Lock icon in trendy design style, by TopVectorStock, dated Oct. 31, 2018, depositphotos.com [online]. Retrieved Aug. 26, 2021 from internet <URL:https://depositphotos.com/223100554/stock-illustration-lock-icon-trendy-design-style.html> (Year: 2018). |
| Trademark Serial No. 85370959, published Jan. 10, 2012, available from Trademark Electronic Search System (TESS). (Year: 2012). |
| Trademark Serial No. 86353981, published Oct. 24, 2014, available from Trademark Electronic Search System (TESS). (Year: 2014). |
| Trademark Serial No. 87009615, published Sep. 6, 2016, available from Trademark Electronic Search System (TESS). (Year: 2016). |