Iskandar, S. et al. 2016. Daily Activity of Proboscis Monkey (Nasalis larvatus Wurmb. 1878) in Disturbed and Degraded Habitat of Peat Swamp-Riparian Ecosystem of Rawa Gelam, at Tapin Regency, South Kalimantan-Indonesia. International Journal of Sciences: Basic and Applied Research (IJSBAR). 29, 3 (Sep. 2016), 261–277.