9,156 Siti Sarah Binti Mohd Sinin 2019-01-16 http://accs.uaa.alaska.edu/files/invasive-species/Trifolium_dubium_BIO_TRDU2.pdf Alaska Center for Conservation Center. (n.d.). Suckling clover Trifolium dubium Sibth.. Retrieved from http://accs.uaa.alaska.edu/files/invasive-species/Trifolium_dubium_BIO_TRDU2.pdf NULL