S. M. Hussain and F. R. Khan, “IN-VITRO COMPARISON OF MICRO-LEAKAGE BETWEEN NANOCOMPOSITE AND MICROHYBRID COMPOSITE IN CLASS V CAVITIES TREATED WITH THE SELF-ETCH TECHNIQUE”, J Ayub Med Coll Abbottabad, vol. 28, no. 3, pp. 445–448, Aug. 2016.