Nazli Che Din, Engku Mastura Engku Ahmad Anuar & Hazreena Hussein. Investigation on the Soundscape preference and perception of Highlands environment: A preliminary study. The 22nd Congress on Sound and Vibration Conference, Florence, Italy.
Hazreena Hussein & Adi Ainurzaman Jamaludin. Residents participation towards sustainable living A post occupancy evaluation study. AicE-Bs 2014 Berlin `Public participation: Shaping a sustainable future`.
Hazreena Hussein. The influence of Sensory Gardens on the behaviour of children with special educational needs. AicE-Bs 2010 Kuching `Children, Youth and Environments`.
Nor Atiah Ismail & Hazreena Hussein. Responsive Open Spaces in Malay Cultural Landscape: Retrospective of recreational spaces. IFPRA 2005 Kuala Lumpur Asia Pacific Congress 'Creating A Lifestyle'.
Hazreena Hussein. Initiating Barrier-Free Built Environment Principle in the University in Malaysia. IFLA 2005 Mumbai, India. Eastern Region Conference 'Ecology, Culture, Landscape, Place and Image in the Global Village`.
Hazreena Hussein. Sensing Inclusive Design in Green Spaces. IFLA 2004 Taipei, Taiwan World Congress 'Integration and Harmony in Landscape Architecture'.
Ati Rosemary Mohd Ariffin & Hazreena Hussein. Regenerating Riverfronts in Small Towns with Big Ideas. International River Symposium 2004 Brisbane, Australia.
Hazreena Hussein & Naziaty Mohd Yaakob. Creating an accessible campus. International Conference for Universal Design 2002, Yokohama, Japan.
Hazreena Hussein. Urban Recreational Riverfronts: Successful Revitalisation Elements. IFLA 2001 Singapore World Congress 'Asian Places in the New Millennium`.