Kurnianto, Alexander Andi, and Mundilarto Mundilarto. 2023. “Assessment: The Quality of Instrument to Measure Student’s Scientific Attitude (SSA) Based on Content Validity and Empirical Testing ”. Jurnal Penelitian Pendidikan IPA 9 (SpecialIssue):732-39. https://doi.org/10.29303/jppipa.v9iSpecialIssue.6816.