ABSTRACT This study is A developmental research aimed at producing Basic Chemistry instructional materials based on the STEM Problem Based Learning approach focused on Organic Chemistry that are valid and practical for chemistry education students. The development methodology adapts a modified ADDIE framework, exploring three crucial stages: analysis, design, and development. The formative eval…
Indonesia's railway manufacturing industry is delevoping quite rapidly, with PT Industri Kereta Api as the sole producer of trains in Indonesia and the Southeast Asia region. There was a increase in export of Indonesian trains to the Philippines in 2018. Through the procurements of locomotives, passenger car, and diesel multiple unit carried out by Philippine National Railway in the context of …