z. a. rahman, n. m. m. saleh, s. a. rahim, w. m. r. idris & t. lihan.  (2016).  kesan suhu terhadap pencirian mekanik bata daripada campuran sisa rawatan air dan abu sekam padi.  - national geology conference 2016.  . 

wan mohd razi idris, sahibin abd. rahim, zulfahmi ali rahman, tukimat lihan & ee chian teng.  (2016).  penilaian kualiti ciri fiziko-kimia sedimen di kawasan lombong bijih besi, paka, dungun, terengganu..  - national geologi conference 2016.  . 

z. a. rahman, n. m. hamid, s. a. rahim, w. m. r. idris & t. lihan.  (2016).  pencirian mekanikal bata daripada campuran sisa rawatan air (dws) dan abu terbang (fa).  - national geoscience conference 2016.  . 

wan mohd razi idris, sahibin abd. rahim, zulfahmi ali rahman, tukimat lihan & ee chian teng.  (2016).  penilaian kualiti ciri fiziko-kimia sedimen di kawasan lombong bijih besi, paka, dungun, terengganu.  - national geoscience conference.  . 

wan mohd razi idris, sahibin abd. rahim, tukimat lihan & zulfahmi ali rahman.  (2015).  status kualiti tanah di lombong tembaga mamut, ranau, sabah.  - impak kongres ukm.  . 

amizam jabbar, zulfahmi ali rahman, sahibin abd.rahim, muzzneena ahmad mustapha dan tukimat lihan.  (2012).  satellite measured spatial and temporal variability of the pahang river plume.  - malaysia geospatial forum, 2012, melaka.  . 

amizam jabbar, zulfahmi ali rahman, sahibin abd. rahim, muzzneena ahmad mustapha & tukimat lihan.  (2011).  satellite measured variability of the pahang river plume.  - international symposium on environment and natural resources.  . 

zulfahmi, a.r., wan zuhairi, w.y., raihan, m.t. & nurul farah, m.s..  (2011).  geotechnical characterisation of marine clay from kuala kedah malaysia..  - international symposium on environment and natural resources.  . 

halijah kamaludin, tukimat lihan, zulfahmi ali rahman & sahibin abd. rahim.  (2011).  determination of erosion potential at pahang river basin, malaysia by using integration of geographical information systems (gis) and revised universal soil loss equation (rusle).  - international symposium on environment and natural resources.  . 

lihan, t., amelia, h. a. g., mustapha, a.m., zulfahmi, a.r., wan mohd razi, i. & sahibin, a.r..  (2011).  soil erosion prediction using integration of rusle model and gis at mentiga river basin, pahang.  - international seminar on current research progress in sciences and technology (isstech 2011).  . 

d.g.toll and z.ali rahman.  (2010).  engineering behavior of unsaturated structured soils.  - 3rd international conference on problematic soils adelaide, australia.  . 

z.a. rahman, s.n.s. zulkafli dan w. z. w. yaacob.  (2010).  pengaruh amang terhadap sifat geoteknik tanah baki metasedimen dan basalt.  - national geoscience conference 2010.  . 

sahibin abd. rahim, mn m said, wan mohd razi idris, zulfahmi ali rahman, tukimat lihan, sharilnizam m. yusman hashim & sariza maarof.  (2010).  ciri fiziko-kimia tanih gambut di kawasan pertanian kg sungai kelambu, banting, selangor, malaysia.  - 3rd regional symposium on environment and natural resources/5-6 august 2008 prince hotel & residence kuala lumpur.  . 

mohd hairil razak, wan zuhairi w. y. & zulfahmi a. r.  (2010).  characteristic of acid mine drainage and potential remedial method of abandoned tin mine in sungai lembing pahang.  - national geoscience conference 2010.  . 

z.a. rahman, n. ahmad, u. hamzah & w. z. w. yaacob.  (2010).  pengaruh hidrokarbon terhadap cirian geoteknik tanah baki tercemar minyak/national geoscience conference 2010.  - national geoscience conference 2010.  . 

mohd shahidan alwi, s. a., zulfahmi, a. r., sahibin, a. r. adam, j. h., wan mohd. razi, i. & siti norhafizah, a.t.  (2009).  potential usage of coconut fronds (cocos nucifera) in bioengineering approach.  - second ukm-ui joint seminar 2009.  . 

zulfahmi ali rahman, umar hamzah & noorulakma binti ahmad.  (2009).  engineering geological properties of oil-contaminated granitic and metasedimentary soils.  - second ukm-ui joint seminar 2009.  . 

zulfahmi, a.r., mohd shahidan alwi, s.a., sahibin, a. r., adam, j. h. & wan mohd. razi, i..  (2009).  the usage of coconut fronds (cocos nucifera) as erosion control material in slope bioengineering approach.  - national coconut conference 2009: opportunities for a sunrise industry.  .