hakimah nur ahmad hamidi, norlin khalid, zulkefly abdul karim, muhamad rias k. v. zainuddin.  (2022).  technical efficiency and export potential of the world palm oil market.  - agriculture.  1-16. 

nada amer abdulhafedh al-kubati, zulkefly abdul karim, norlin khalid, mohammad kabir hassan.  (2022).  the impact of sub-sector of economic activity and financial development on environmental degradation: new evidence using dynamic heterogeneous panel.  - mathematics.  1-23. 

nor zam azihan mohd hassan, mohd shaiful jefri mohd nor sham kunusagaran, nur amalina zaimi, farhana aminuddin, fathullah iqbal ab rahim, suhana jawahir, zulkefly abdul karim.  (2022).  the inequalities and determinants of households distress financing on out-of-pocket health expenditure in malaysia.  - bmc public health.  1-14. 

mohammed daher alshammary, norlin khalid, zulkefly abdul karim, riayati ahmad.  (2022).  government expenditures and economic growth in the mena region: a dynamic heterogeneous panel estimation.  - international journal of finance and economics.  3287-3299. 

zulkefly abdul karim, rosmah nizam, siong hook law, m. kabir hassan.  (2022).  does financial inclusiveness affect economic growth? new evidence using a dynamic panel threshold regression.  - finance research letters.  1-10. 

zulkefly abdul karim, fairul shah rizat muhamad fahmi, bakri abdul karim, mohamed aseel shokr.  (2022).  market sentiments and firm-level equity returns: panel evidence of malaysia.  - economic research.  5253-5272. 

md. bokhtiar hasan, m. kabir hassan, zulkefly abdul karim, md. mamunur rashid.  (2022).  exploring the hedge and safe haven properties of cryptocurrency in policy uncertainty.  - finance research letters.  1-7. 

sin yee lee, zulkefly abdul karim, norlin khalid, mohd azlan shah zaidi.  (2022).  the push and pull factors of china's outward foreign direct investment in bri countries.  - technological and economic development of economy.  611-637. 

ruzita abdul-rahim, airil khalid, zulkefly abdul karim, mamunur rashid.  (2022).  exploring the driving forces of stock-cryptocurrency comovements during covid-19 pandemic: an analysis using wavelet coherence and seemingly unrelated regression.  - mathematics.  1-19. 

norrana khidil, mohd azlan shah zaidi, zulkefly abdul karim.  (2021).  fragmentation of international production and business cycle synchronization: new evidence pre and during global financial crises.  - sustainability.  1-15. 

rosmah nizam, zulkefly abdul karim, tamat sarmidi, aisyah abdul rahman.  (2021).  financial inclusion and firm growth in asean-5 countries: a new evidence using threshold regression.  - finance research letters.  1-6. 

qusai mohammad qasim alabed, fathin faizah said, zulkefly abdul karim, mohd azlan shah zaidi, mohammed daher alshammary.  (2021).  energy-growth nexus in the mena region: a dynamic panel threshold estimation.  - sustainability.  1-18. 

rosmah nizam, zulkefly abdul karim, aisyah abdul rahman, tamat sarmidi.  (2020).  financial inclusiveness and economic growth: new evidence using a threshold regression analysis.  - economic research-ekonomska istrazivanja.  1465-1484. 

mohd shahidan shaari, zulkefly abdul karim, noorazeela zainol abidin.  (2020).  the effects of energy consumption and national output on co2 emissions: new evidence from oic countries using a panel ardl analysis.  - sustainability.  1-12. 

nurliyana mohd basri, zulkefly abdul karim, noorasiah sulaiman.  (2020).  the effects of factors of production shocks on labor productivity: new evidence using panel var analysis.  - sustainability.  1-23.