Sim, J. H. (2010). Representational competence of Form Four science students on basic chemical concepts / Sim Joong Hiong.
استشهاد بنمط شيكاغوSim, Joong Hiong. Representational Competence of Form Four Science Students On Basic Chemical Concepts / Sim Joong Hiong. 2010.
MLA استشهادSim, Joong Hiong. Representational Competence of Form Four Science Students On Basic Chemical Concepts / Sim Joong Hiong. 2010.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.