Sistem Sokongan Rangkaian Tingkatan 4 dan 5Mohd Hazali bin Mohamed Halip, Omar bin Zakaria, Rosli bin Salleh · First published 2016Open the Tome
Dunia terancamLester Russell Brown, Rosli Omar, Zaini Ujang, Zulkifli Salleh, Institut Analisa Sosial (Malaysia), Worldwatch Institute · First published 1990Open the Tome
