van Driem, George (1990). "The Fall and Rise of the Phoneme /r/ in Eastern Kiranti: Sound Change in Tibeto-Burman". Bulletin of the School of Oriental and African Studies, University of London. 53 (1): 83–86. doi:10.1017/S0041977X00021273. JSTOR618970. S2CID128967034.
van Driem, George (1990). "The Fall and Rise of the Phoneme /r/ in Eastern Kiranti: Sound Change in Tibeto-Burman". Bulletin of the School of Oriental and African Studies, University of London. 53 (1): 83–86. doi:10.1017/S0041977X00021273. JSTOR618970. S2CID128967034.
van Driem, George (1990). "The Fall and Rise of the Phoneme /r/ in Eastern Kiranti: Sound Change in Tibeto-Burman". Bulletin of the School of Oriental and African Studies, University of London. 53 (1): 83–86. doi:10.1017/S0041977X00021273. JSTOR618970. S2CID128967034.