Dr Daniel Njane Thuo, Dr Barchok H. K, Prof. Veronica N., Dr Bururia D. “Students’ Knowledge of HIV/AIDS and Their Attitude towards Sexual Behaviour- A Comparative Study of Form 1 and Form 4 Secondary School Students in Coast Region, Kenya”. International Journal of Emerging Trends in Science and Technology, Vol. 5, no. 01, Jan. 2018, pp. 6476-84, http://igmpublication.org/ijetst.in/index.php/ijetst/article/view/1241.