Siti-Kauthar, M.; Najmuddin, M. F.; Md-Zain, B. M.; Abdul-Latiff, M. A. B. (2019). "PrimaTourism: preliminary study on activity budget of dusky leaf monkey Trachypithecus obscurus obscurus in Bukit Soga Perdana, Batu Pahat, Johor". IOP Conference Series: Earth and Environmental Science. 269 (1): 012045. Bibcode:2019E&ES..269a2045S. doi:10.1088/1755-1315/269/1/012045. S2CID201211018.
Siti-Kauthar, M.; Najmuddin, M. F.; Md-Zain, B. M.; Abdul-Latiff, M. A. B. (2019). "PrimaTourism: preliminary study on activity budget of dusky leaf monkey Trachypithecus obscurus obscurus in Bukit Soga Perdana, Batu Pahat, Johor". IOP Conference Series: Earth and Environmental Science. 269 (1): 012045. Bibcode:2019E&ES..269a2045S. doi:10.1088/1755-1315/269/1/012045. S2CID201211018.
Siti-Kauthar, M.; Najmuddin, M. F.; Md-Zain, B. M.; Abdul-Latiff, M. A. B. (2019). "PrimaTourism: preliminary study on activity budget of dusky leaf monkey Trachypithecus obscurus obscurus in Bukit Soga Perdana, Batu Pahat, Johor". IOP Conference Series: Earth and Environmental Science. 269 (1): 012045. Bibcode:2019E&ES..269a2045S. doi:10.1088/1755-1315/269/1/012045. S2CID201211018.
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