“…Some studies were already conducted on these early acquisition strategies. Some are focusing on the productive aspects of language acquisition (Sorsana et al, 2013;Stemberger, 2014;Yang, 2016), comprehension strategy (Mitchell & Brady, 2013;Rakoczy & Tomasello, 2009;Wagner et al, 2010), functional definition strategy (Batson-Magnuson, 2017;Fiano, 2014;Negen & Sarnecka, 2012), imitation and repetition strategy (Oller et al, 2013;Santos et al, 2015;Sidnell, 2010a), and questioning strategy (Bova & Arcidiacono, 2013;Chouinard, 2007;Rowland, 2007). In the Indonesian context, although there were not many studies on these strategies, there is a study by Solehuddin, Gunawan, & Kurniawan (2019), revealing that preschool children's productive strategy is marked by the awareness of inflection and derivation in Indonesian morphology.…”