Sarala Thulasi Palpanadan , Venosha K Ravana. “English As a Second Language (ESL) Writing Instructions and the Effects on Primary Students: A Multiple Case Study”. International Journal of Advanced Science and Technology, Vol. 29, no. 10s, May 2020, pp. 524 -31, http://sersc.org/journals/index.php/IJAST/article/view/14460.