lwi yee chin, bock ai ling, khor zhen yeung, atika ashar, tanti irawati rosli.  (2021).  effect of tooth loss and chewing ability on cognitive function of community dwelling elderly.  - teikyo medical journal.  3289-3296. 

nes nawi, alizae marny mohamed, murshida marizan nor, nor atika ashar.  (2018).  correlation and agreement of a digital and conventional method to measure arch parameters.  - journal of orofacial orthopedics.  19-27. 

tepirou chher, sithan hak, thomas george kallarakkal, callum durward, anand ramanathan, wan maria nabillah ghani, ishak abdul razak,masitah hayati harun, nor atika md ashar, rama krsna rajandram,pisethraingseyprak, haizal mohd hussaini & rosnah binti zain.  (2018).  prevalence of oral cancer, oral potentially malignant disorders and other oral mucosal lesions in cambodia.  - ethnicity & health.  1-15. 

shalini kanagasingam, mohd haizal hussaini, eason soo, safura anita baharin, nor atika ashar, shanon patel.  (2017).  accuracy of single and parallax film and digital periapical radiographs in diagnosing apical periodontitis - a cadaver study.  - international endodontic journal.  427-436.