“Pengembangan Buku Ajar IPS Terpadu Berbasis 3 Dimensi Di SMPN 3 Pasiran - Lumajang Dengan Pendekatan Kontekstual Learning: Development of an Integrated Social Studies Textbook Based on 3 Dimensions at SMPN 3 Pasiran - Lumajang With a Contextual Learning Approach”. 2019. Proceedings of The ICECRS 2 (1): 225-31. https://doi.org/10.21070/picecrs.v2i1.2415.