siti fairuz mat radzi, muhammad khalis abdul karim, m iqbal saripan, mohd amiruddin abdul rahman, iza nurzawani che isa, mohammad johari ibahim.  (2021).  hyperparameter tuning and pipeline optimization via grid search method and tree-based automl in breast cancer prediction.  - journal of personalized medicine.  1-17. 

muhammad ikhmal naim mohd hilal, rekha ganesan, norhashimah norsuddin, mohd izuan ibrahim, said mohd shaffiq said rahmat, muhammad khalis abd karim, iza nurzawani che isa.  (2021).  radiation dose to the eye and potential occurrence radiation- induced cataract following computed tomography (ct) head examination.  - malaysian journal of public health medicine.  1-7. 

rekha ganesan, muhammad ikhmal naim mohd hilal, iza nurzawani che isa, norhashimah norsuddin, khadijah mohd nassir, said mohd shaffiq said rahmat & muhammad khalis abd karim.  (2021).  estimated effective lifetime risks of radiation-induced thyroid cancer in computed tomography (ct) brain examination.  - sains malaysiana.  3365-3372. 

osama bagi aljewaw, muhammad khalis abdul karim, halimah mohamed kamari, mohd hafiz mohd zaid, noramaliza mohd noor, iza nurzawani che isa and mohammad hasan abu mhareb.  (2020).  impact of dy2o3 substitution on the physical, structural and optical properties of lithium aluminium borate glass system.  - applied sciences.  1-17. 

hanif haspi harun, muhammad khalis abdul karim, mohd amiruddin abd rahman, hairil rashmizal abdul razak, iza nurzawani che isa, faeezah harun.  (2020).  establishment of ctpa local diagnostic reference levels with noise magnitude as a quality indicator in a tertiary care hospital.  - diagnostics.  1-11. 

said mohd shaffiq said rahmat, muhammad khalis abdul karim, iza nurzawani che isa, mohd amiruddin abd rahman, noramaliza mohd noor, ng kwan hoong.  (2020).  effect of miscentering and low-dose protocols on contrast resolution in computed tomography head examination.  - computers in biology and medicine.  1-6. 

isa inc, rahmat sms, dom sm, kayun z, karim mka.  (2019).  the effects of mis-centering on radiation dose during ct head examination: a phantom study.  - journal of x-ray science and technology.  631-639.