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Arjay S. Bansil; Niro Arwin E. Bendicio; Joshua P. Lumba; Jan Philip Targuin G. Marron; Jean A. Montero; Ralph John V. Tiglao; Stephanie N. Timbol; Mariane P. Nunag; Jocelyn T. Malig; Mildred M. Fabian. Utilization Of Sand and Plastic As Substitute Material to Lego-Inspired Blocks. IJPRSE 2022, 3, 231-242.