1. Phonetic absence as syntactic prominence. Grammaticalization in isolating tonal languages;Ansaldo,2004
2. Baxter, W., Sagart, L., 2011. Baxter–Sagart Old Chinese Reconstruction (Version 1.00). (accessed 05.10.12).
3. Areal typology and grammaticalization: processes of grammaticalization based on nouns and verbs in East and mainland South East Asian languages;Bisang;Studies in Language,1996
4. Grammaticalization without coevolution of form and meaning: the case of tense–aspect–modality in East and mainland Southeast Asia;Bisang,2004
5. Grammaticalization and the Areal Factor – the perspective of East and Mainland South East Asian languages;Bisang,2008