siti nur hidayah jaafar, lorna jeffery minggu, mohammad b. kassim, wan ramli wan daud.  (2015).  improvement of photoelectrochemical water splitting with natural dye of pitaya peel.  - the 3rd iet international conference on clean energy and technology (ceat 2014), ieee.  1-6. 

ng kim hang, hasmida abdul kadir, lorna jeffery minggu, mohammad bin kassim.  (2013).  stability of wo3/cuo heterojunction photoelectrodes in pec system.  - 3rd isesco international workshop and conference on nanotechnology 2012, iwcn 2012; selangor (materials science forum).  . 

pn. lorna jeffery minggu, prof. ir. dr. wan ramli wan daud, prof. dr.kamaruzzaman sopian, prof.madya dr.mohammad kassim, prof. dr. abu bakar mohamad, prof. dr.abdul amir hassan kadhum.  (2008).  development of photoelectrochemical water splitting to prodecu hydrogen.  - seminar pemantauan projek penyelidikan (gup) 2007.  .