Radhakrishna, S; Goswami A.B; Sinha A (2006-08-02). «Distribution and Conservation of Nycticebus bengalensis in Northeastern India». International Journal of Primatology27 (4): 971-982. ISSN1573-8604. doi:10.1007/s10764-006-9057-9.|fechaacceso= requiere |url= (ayuda)
Radhakrishna, S; Goswami A.B; Sinha A (2006-08-02). «Distribution and Conservation of Nycticebus bengalensis in Northeastern India». International Journal of Primatology27 (4): 971-982. ISSN1573-8604. doi:10.1007/s10764-006-9057-9.|fechaacceso= requiere |url= (ayuda)