Solemon, Badariah, and Wan Muhammad Luqman Wan Abu Bakar. “Factors Motivating the Public to Participate in Crowdsourcing of Crime Information”. International Journal of Engineering and Technology, vol. 7, no. 4.35, Nov. 2018, pp. 583-8, https://doi.org/10.14419/ijet.v7i4.35.22917.