1. J. L. J. Jing, T. P. Yi, R. J. C. Bose, J. R. Mc Carthy, N. Tharmalingam and T. Madheswaran, International Journal of Int. J. Environ. Res. Public Health, vol. 17, no. 3326, (2020).
2. N. A. Saputri, D. N. Septarian and W. Rahayu, Manufacture of hand sanitizer based on aloe vera (aloe vera) with a sweet orange (Citrus sinensis) aroma (translation) (Universitas Sebelas Maret, Surakarta, 2019).
3. M. H. García, J. A. T. Juárez and A. D. Jiménez, The Journal of Middle East and North Africa Sciences, vol. 5, no. 7, pp. 18–23, (2019).
4. M. A. Sawai, International Journal of Research in Dentistry, vol. 4, no. 2, (2014).
5. K. P. S. Kumar, D. Bhowmik and C. Biswajit, J. Chem. Pharm. Res., vol. 2, no. 1, pp. 21–29, (2010).