Herawati, A. et al. 2019. Pelatihan Pengenalan Sains Sederhana Bagi Guru TK Islam Insan Cendekia Surabaya. Jurnal Loyalitas Sosial: Journal of Community Service in Humanities and Social Sciences. 1, 2 (Dec. 2019), 59–70. DOI:https://doi.org/10.32493/JLS.v1i2.p59-70.