Article Per Year (5 Year)
p-Index From 2021 - 2026
0.444
P-Index
This Author published in this journals
All Journal JURNAL ILMIAH PENDIDIKAN KEBUDAYAAN DAN AGAMA Optimal: Jurnal Ekonomi dan Manajemen
Dian Kartika Sari
Universitas Negeri Medan
Religion Humanities Social Sciences Other

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
MENINGKATKAN KETERAMPILAN MENULIS DAN KREATIVITAS SISWA DENGAN PENERAPAN MODEL PEMBELAJARAN COOPERATIVE INTEGRATED READING AND COMPOSITION (CIRC) Debi Servinta Br Perangin angin; Dian Kartika Sari; Mara Untung Ritonga; Wisman Hadi
JURNAL ILMIAH PENDIDIKAN KEBUDAYAAN DAN AGAMA Vol. 3 No. 2 (2025): April : Jurnal Ilmiah Pendidikan Kebudayaan dan Agama
Publisher : CV. ALIM'SPUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59024/jipa.v3i2.1178

Abstract

Writing skills play an important role in students ' language development, especially at the elementary school level. However, many students have difficulty expressing thoughts and ideas in writing. This study aims to analyze the application of Cooperative Integrated Reading and Composition (CIRC) learning model in improving students ' writing skills and creativity. The Cooperative Integrated Reading and Composition (CIRC) learning Model was chosen because it can integrate writing activities and develop students ' creativity. This study uses a descriptive qualitative approach with data collection techniques through observation, interviews, and documentation studies. The results showed that the application of Cooperative Integrated Reading and Composition (CIRC) model can improve students ' writing skills, seen from their ability to construct sentences and convey ideas more structured and effective. In addition, student creativity also increased, where students were able to organize ideas, as well as pour them in writing with the right word selection. The CIRC Model also encourages cooperation, critical thinking and student creativity. This study identifies several challenges in its application, so it is advisable to implement the CIRC model with good time management and effective classroom management strategies to achieve optimal results. This study concludes that the Cooperative Integrated Reading and Composition (CIRC) learning model is an effective approach to improve students ' writing skills and creativity in elementary school.
Analisis Hambatan Produksi dan Efektivitas Sistem Pemeliharaan Preventive Maintenance Pabrik PT. Nippon Indosari Corpindo Medan Khafi Puddin; Marito Ritonga; Viory Salsabila; Intan Jamilah; Dian Kartika Sari; Refi Adiyaksa Harahap; Aulia Bening
OPTIMAL Jurnal Ekonomi dan Manajemen Vol. 6 No. 1 (2026): Jurnal Ekonomi dan Manajemen
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/optimal.v6i1.9056

Abstract

Production disruptions remain a major challenge in the manufacturing industry, including at Indonesia's largest bread company, PT. Nippon Indosari Corpindo Tbk., which relies on a large-scale automated production system. Despite using modern technology and integrated management systems, the factory often faces technical obstacles that impact production efficiency and continuity. This study aims to analyze the factors that hinder the production process and evaluate the effectiveness of the preventive maintenance system at the Medan Factory of PT. Nippon Indosari Corpindo Tbk. This study uses a qualitative method with a case study approach through interviews, observations, and documentation of employees who are competent in the fields of production and maintenance. The results of the study show that the main obstacles stem from technical factors related to machinery, while human error and delays in raw materials are relatively minimal due to an automated work system and efficient raw material management. High dependence on machinery means that any damage has a direct impact on production continuity. The maintenance system implemented by the company consists of two layers, namely periodic preventive maintenance by technicians from Japan and corrective maintenance by company technicians who are on standby. Although effective in preventing major damage, disruptions still occur between maintenance periods, indicating the need to increase the frequency of maintenance, implement real-time machine condition monitoring, and integrate predictive maintenance to continuously improve production reliability and efficiency.
Co-Authors Aulia Bening Debi Servinta Br Perangin angin Intan Jamilah Khafi Puddin MARA UNTUNG RITONGA, MARA UNTUNG Marito Ritonga Refi Adiyaksa Harahap Viory Salsabila Wisman Hadi