Shofiyah, Eka S, et al. “SALIVARY ALPHA-AMYLASE AS A MEASURE OF ANXIETY BEFORE AND AFTER DENTAL TREATMENT FOR VISUALLY AND HEARING-IMPAIRED CHILDREN AND THEIR MOTHERS”. International Journal of Applied Pharmaceutics, vol. 9, Jan. 2018, pp. 128-30, doi:10.22159/ijap.2017.v9s2.32.