Zahtamal, Z., Chandra, F., Restila, R. and Restuastuti, T. (2020) “Defecation Behavior in Elementary School Age Children Who Live Along the Kampar River Riau Province”, JURNAL KESEHATAN LINGKUNGAN , 12(2), pp. 87–96. doi: 10.20473/jkl.v12i2.2020.87-96.