W.P. Groenevelt. Notes On the Malay Archipelago And Malacca: Compiled From Chinese Sources. Venhandeligen van Het Bataviaasch Genootschap van Kunsten en Wetenschappen Vol. XXXIX (39) in 1880. isi disalin tanpa perubahan dicetak dalam bentuk buku Historical Notes on Indonesia & Malaya: Complied From Chinese Sources. C.V Bharatara bekerjasama dengan Lembaga Kebudayaan Indonesia. 1960. Jakarta. Hlm 98
Ying-Yai Sheng-Lan (1416)
The country of Litai is Situated at the west of Nakur: on the south it is bordered by larged Mountain, on the north it extends as far as the sea and on the west it is bordered by Lambri. the population amount to one or two thousand families, who have chosen one man to be their chief and administer their affairs. they acnkowledge the supremacy of Sumatra. The country produce nothing for export. The language and the customes are the same as in Sumatra.
In the mountain there is an abundance of Rhinoceroses: The King is in the habit of sending man to hunt them and the horn are brought to China as tribute together with that of Sumatra.