relation: https://eprints.untirta.ac.id/48448/ title: PENGARUH MODEL PEMBELAJARAN PROBLEM BASED LEARNING (PBL) TERINTEGRASI LABORATORIUM VIRTUAL (PhET) DAN SELF-EFFICACY TERHADAP KEMAMPUAN PEMECAHAN MASALAH IPA DI SMPN 2 RANGKASBITUNG creator: LASTARI SIREGAR, INDAH subject: L Education (General) description: Critical thinking and problem solving are essential skills in the 21st century. However, the evaluation results at SMPN 2 Rangkasbitung showed the low ability of students in these aspects. Conventional learning models are considered less effective in improving understanding and problem-solving skills date: 2025 type: Thesis type: NonPeerReviewed format: text language: en identifier: https://eprints.untirta.ac.id/48448/1/Indah%20Lastari%20Siregar_7772230011_FullText.pdf format: text language: en identifier: https://eprints.untirta.ac.id/48448/3/Indah%20Lastari%20Siregar_7772230011_02.pdf format: text language: en identifier: https://eprints.untirta.ac.id/48448/4/Indah%20Lastari%20Siregar_7772230011_03.pdf format: text language: en identifier: https://eprints.untirta.ac.id/48448/5/Indah%20Lastari%20Siregar_7772230011_04.pdf format: text language: en identifier: https://eprints.untirta.ac.id/48448/6/Indah%20Lastari%20Siregar_7772230011_05.pdf format: text language: en identifier: https://eprints.untirta.ac.id/48448/7/Indah%20Lastari%20Siregar_7772230011_Ref.pdf format: text language: en identifier: https://eprints.untirta.ac.id/48448/8/Indah%20Lastari%20Siregar_7772230011_Lamp.pdf format: text language: en identifier: https://eprints.untirta.ac.id/48448/9/Indah%20Lastari%20Siregar_7772230011_01.pdf identifier: LASTARI SIREGAR, INDAH (2025) PENGARUH MODEL PEMBELAJARAN PROBLEM BASED LEARNING (PBL) TERINTEGRASI LABORATORIUM VIRTUAL (PhET) DAN SELF-EFFICACY TERHADAP KEMAMPUAN PEMECAHAN MASALAH IPA DI SMPN 2 RANGKASBITUNG. Master thesis, UNIVERSITAS SULTAN AGENG TIRTAYASA.