razik ridzuan mohd tajuddin, noriszura ismail.  (2025).  inflation properties in count data distributions: a three-decade bibliometric analysis. .  - sains malaysiana.  303 - 312. 

shin zhu sim, hassan s. bakouch, razik ridzuan mohd tajuddin, ulya abdul rahim.  (2025).  a ratio-type weighted geometric distribution for modelling overdispersed count data.  - sains malaysiana.  313 - 323. 

razik ridzuan mohd tajuddin, noriszura ismail, mohammad rahim kamaluddin, ahmad azwan amin nordin, mohd firdaus-raih.  (2025).  imbalance in spatiotemporal analysis of narcotics-related activities: a bibliometric review.  - humanities and social sciences communications.  1 - 13. 

yan-yong zhao, kaizhou lei, yuan liu, yuanyao tan, noriszura ismail, razik ridzuan mohd tajuddin, rongjie liu, chao huang, the alzheimer's disease neuroimaging initiative.  (2025).  single-index measurement error jump regression model in alzheimer’s disease studies.  - statistics in medicine.  1 - 12. 

razik ridzuan mohd tajuddin.  (2025).  a weighted error-minimizer parameter estimation technique for one-inflated positive poisson distribution.  - results in control and optimization.  1 - 5. 

muhammad aslam mohd safari, nurulkamal masseran, muhammad hilmi abdul majid, razik ridzuan mohd tajuddin.  (2025).  robust estimation of the three parameter weibull distribution for addressing outliers in reliability analysis.  - scientific reports.  1 - 14. 

alrasheedi, nawwal dhwaiher n.; masseran, nurulkamal; tajuddin, razik ridzuan mohd.  (2025).  a systematic literature review on the estimation of high air pollution periods using machine learning approaches.  - contemporary mathematics (singapore).  3184 - 3208. 

alrasheedi n. d. n. , masseran n., mohd tajuddin r. r..  (2025).  estimation of generalized extreme value parameters for predicting extreme air pollution events in klang valley: a comparative study of optimization algorithms .  - malaysian journal of mathematical sciences.  509 - 536. 

yuan liu, yiwei liu, noriszura ismail, razik ridzuan mohd tajuddin, yan-yong zhao.  (2025).  post-detection penalized estimation for a high-dimensional partially linear model with jump discontinuities.  - journal of statistical computation and simulation.  3615 - 3632. 

nurulkamal masseran, muhammad aslam mohd safari, razik ridzuan mohd tajuddin.  (2024).  probabilistic classification of the severity classes of unhealthy air pollution events.  - environmental monitoring and assessment.  1-15. 

razik ridzuan mohd tajuddin, noriszura ismail.  (2024).  recent advances in estimating the criminal population.  - salus journal.  1-14. 

gadir alomair, razik ridzuan mohd tajuddin, hassan s. bakouch, amal almohisen.  (2024).  a statistical model for count data analysis and population size estimation: introducing a mixed poisson-lindley distribution and its zero truncation.  - axioms.  1-21. 

razik ridzuan mohd tajuddin, noriszura ismail.  (2024).  on stochastic representations of the zero-one-inflated poisson lindley distribution.  - mathematics.  1-16. 

razik ridzuan mohd tajuddin, muhammad aslam mohd safari, noriszura ismail.  (2024).  robust parameter estimation for one-inflated positive poisson lindley distribution under the presence and absence of outliers with applications to crime data.  - pakistan journal of statistics and operation research.  369 - 381. 

laila naji ba dakhn, mohd aftar abu bakar, razik ridzuan mohd tajuddin, kamarulzaman ibrahim.  (2024).  bayesian approach for estimating the parameters of the time-to-failure distribution and its percentiles under power degradation model.  - sains malaysiana.  3215 - 3227. 

razik ridzuan mohd tajuddin.  (2023).  simpler estimators for k-flated poisson distribution.  - journal of quality measurement and analysis.  31 - 43. 

razik ridzuan mohd tajuddin, noriszura ismail.  (2023).  a new one-parameter size-biased poisson distribution for modelling underdispersed count data.  - malaysian journal of fundamental and applied sciences.  164-172. 

nurulkamal masseran, razik ridzuan mohd tajuddin, mohd talib latif.  (2023).  classifying severity of unhealthy air pollution events in malaysia: a decision tree model.  - sains malaysiana.  2971-2983. 

razik ridzuan mohd tajuddin, nurulkamal masseran.  (2023).  quantifying haze effect using air pollution index data.  - sains malaysiana.  -. 

razik ridzuan mohd tajuddin, noriszura ismail, kamarulzaman ibrahim, shaiful anuar abu bakar.  (2022).  a new zero-one-inflated poisson-lindley distribution for modeling overdispersed count data.  - bulletin of the malaysian mathematical sciences society.  21-35. 

razik ridzuan mohd tajuddin, noriszura ismail, kamarulzaman ibrahim.  (2022).  several two-component mixture distributions for count data.  - communications in statistics - simulation and computation.  3760-3771.