Sakr, M;    Jewitt, C;    Price, S;      (2014)    The Semiotic Work of the Hands in Scientific Enquiry.                   Classroom Discourse , 5  (1)   pp. 51-70.    10.1080/19463014.2013.868078 <https://doi.org/10.1080/19463014.2013.868078>.       Green open access