Horrocks, M; Nieuwoudt, MK; Kinaston, R; Buckley, H; Bedford, S (13 November 2013). "Microfossil and Fourier Transform InfraRed analyses of Lapita and post-Lapita human dental calculus from Vanuatu, Southwest Pacific". Journal of the Royal Society of New Zealand. 44 (1): 17–33. doi:10.1080/03036758.2013.842177. S2CID128880569.
Nurul Chairiyah; Nunung Harijati; Retno Mastuti (Februari 2016). "Variation of Calcium Oxalate (CaOx) Crystals in Porang Corms (Amorphophallus muelleri Blume) at Different Harvest Time". American Journal of Plant Sciences (dalam bahasa Inggeris). 7 (2). doi:10.4236/ajps.2016.72030. ISSN2158-2750.
Horrocks, M; Nieuwoudt, MK; Kinaston, R; Buckley, H; Bedford, S (13 November 2013). "Microfossil and Fourier Transform InfraRed analyses of Lapita and post-Lapita human dental calculus from Vanuatu, Southwest Pacific". Journal of the Royal Society of New Zealand. 44 (1): 17–33. doi:10.1080/03036758.2013.842177. S2CID128880569.
worldcat.org
Nurul Chairiyah; Nunung Harijati; Retno Mastuti (Februari 2016). "Variation of Calcium Oxalate (CaOx) Crystals in Porang Corms (Amorphophallus muelleri Blume) at Different Harvest Time". American Journal of Plant Sciences (dalam bahasa Inggeris). 7 (2). doi:10.4236/ajps.2016.72030. ISSN2158-2750.