Kurniastuti, Irine and Widiarti, Anastasia Rita and Adi Nugroho, Robertus and Pinaryanto, Kartono (2021) Development of a smart doll prototype for early age children colours learning in three languages. International Journal of Indonesian Education and Teaching, 6 (2). pp. 299-308. ISSN e-ISSN 2548-8430, p-ISSN 2548-8422