Sustainability practices at higher education institutions in Asia by Filho, Walter Leal, Dinis, Maria Alzira Pimenta, Sivapalan, Subarna, Begum, Halima, Ng, Theam Foo, Al-Amin, Abul Quasem, Alam, Gazi Mahabubul, Sharifi, Ayyoob, Salvia, Amanda Lange, Kalsoom, Qudsia, Saroar, Mustafa, Neiva, Samara