http://repository.uhamka.ac.id/id/eprint/12660/ Turnitin-Students' Mathematical Thinking in Column Calculation and Algorithms Puri, Pramudiani http://repository.uhamka.ac.id/id/eprint/12660/1/01_A_2021_Uji%20Turnitin%20Article_Cendekia_Puri_Prof%20Tatang.pdf Unduh!