Hutagaol, C. S., & Harsono, T. (2016). ANALYSIS OF STUDENTS™ M I S C O N C E P T I O N O N T H E TOPIC OF HUMAN EXCRETORY SYSTEM IN GRADE XI SMA NEGERI DISTRICT MEDAN KOTA. Jurnal Pelita Pendidikan, 4(3). https://doi.org/10.24114/jpp.v4i3.5268