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siti nurasyikin shamsuddin, noriszura ismail, nur firyal roslan.  (2023).  life insurance prediction and its sustainability using machine learning approach.  - sustainability.  1-21. 

saiful izzuan hussain, r. nur-firyal, nadiah ruza.  (2022).  linkage transitions between oil and the stock markets of countries with the highest covid-19 cases.  - journal of commodity markets.  1-17. 

gongxing yan, ali shawabkeh, rishabh chaturvedi, r. nur-firyal, mohammad mehdizadeh youshanlouei.  (2022).  using mhd free convection to receive the generated heat by an elliptical porous media.  - case studies in thermal engneering.  1-15. 

siti nurasyikin shamsuddin, noriszura ismail, nur firyal roslan.  (2022).  what we know about research on life insurance lapse: a bibliometric analysis.  - risks.  1-20. 

hadirah binti mohd hairuddin; r. nur-firyal.  (2022).  hubungan antara emas, minyak dan pasaran saham malaysia semasa perintah kawalan pergerakan covid-19 menggunakan regresi kuantil dan siri masa.  - sains malaysiana.  2315-2327. 

nur sabrina razali, r. nur-firyal.  (2021).  predicting index price based on the covid-19 cases and deaths.  - sains malaysiana.  2829-2842.