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All Journal EDUKATIF : JURNAL ILMU PENDIDIKAN Sang Pencerah: Jurnal Ilmiah Universitas Muhammadiyah Buton SEPREN: Journal of Mathematics Education and Applied Journal On Teacher Education (Jote) Community Development Journal: Jurnal Pengabdian Masyarakat Indonesia Berdaya Jurnal Pengabdian dan Edukasi Sekolah (Jubaedah) Jurnal Pengabdian Kepada Masyarakat Bulletin of Community Engagement International Journal of Social Science, Educational, Economics, Agriculture Research, and Technology (IJSET) JURNAL PENELITIAN BIDANG PENDIDIKAN JOMLAI: Journal of Machine Learning and Artificial Intelligence Jurnal Ilmu Pendidikan dan Sosial Jurnal Pengabdian Kolaborasi dan Inovasi IPTEKS Jurnal Pengabdian Harapan Bangsa Jurnal Pustaka Cendekia Pendidikan
Juli Antasari Br Sinaga
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IMPLEMENTATION OF THE SIMPLEX METHOD IN MAXIMIZED DONUT PRODUCTION PROFITS AT ARSYILA BAKERY Gayus Simarmata; Juli Antasari Br Sinaga; Lilis; Yuliana Nainggolan; Jelli Sijabat; Vania Yocelin Sagala
International Journal of Social Science, Educational, Economics, Agriculture Research and Technology (IJSET) Vol. 3 No. 6 (2024): MAY
Publisher : RADJA PUBLIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54443/ijset.v3i6.1513

Abstract

Arsyila Bakery, a bakery MSME, faces challenges in determining the most efficient donut production combination. Production decisions have been based on intuition, potentially leading to waste of raw materials and inability to generate maximum profits. This study aims to formulate a Linear Program model as a decision-making tool in determining donut production strategies, namely Potato Donuts x_1 and Milk Donuts x_2, in order to obtain optimal daily profits. A quantitative approach is used through the Linear Program optimization method with the objective function of maximizing profits z = 3000x_1 + 2000x_2, which is limited by nine constraints of raw material availability and production capacity. The model is solved using the Simplex Method algorithm through POM-QM software for Windows. The analysis results show that the optimal solution is achieved by producing 8 units of Potato Donuts and 0 units of Milk Donuts, resulting in a maximum profit of Rp24,000 per day. The binding constraints in the model are Sugar and Potatoes, which are the main limiting factors of production. The economic value (shadow price) indicates that the addition of sugar has the greatest impact on increasing profits, at IDR 2,000 per kilogram, followed by potatoes at IDR 5,000 per kilogram. Based on these findings, it is recommended that Arsyila Bakery implement this optimal production combination and prioritize increasing sugar stock to support improved operational performance and achieve higher profits.
APPLICATION OF THE ABC METHOD TO IMPROVE THE EFFECTIVENESS OF CONTROL OF DRUG INVENTORY FOR BPJS HEALTH PATIENTS Juli Antasari Br Sinaga; Gayus Simarmata; Adi Suarman Situmorang; Nilam Sari; Angelina Manik
International Journal of Social Science, Educational, Economics, Agriculture Research and Technology (IJSET) Vol. 1 No. 10 (2022): SEPTEMBER
Publisher : RADJA PUBLIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54443/ijset.v1i10.1514

Abstract

This study aims to analyze drug inventory control at Kasih Clinic using the ABC method with the help of POM-QM software for Windows. Based on the Pareto principle, the results of data processing indicate that inventory items can be classified into three main groups based on the contribution of usage value to total inventory costs. Group A consists of five main drug items that contribute the most to inventory value, which is around 87.48%, despite the relatively small number of items. This group requires strict control because it has a significant financial impact. Group B includes two drug items with a cumulative contribution of usage value up to 97.55% and requires periodic monitoring with a medium priority level. Meanwhile, group C consists of most drug items but only contributes around 2.45% of the total usage value, so it can be managed with a simpler control system. Overall, the application of the ABC method has proven effective in identifying drug inventory control priorities objectively and based on economic value, thus supporting more efficient hospital inventory management decisions
Hubungan Antara Fasilitas Belajar dan Motivasi Belajar dengan Prestasi Belajar Siswa dalam Pembelajaran Matematika Siswa Kelas VII di SMP HKBP Sidikalang T.A 2021/2022: Penelitian Mega Sri Fanni Bako; Juli Antasari Br Sinaga; Firman Pangaribuan
Jurnal Pustaka Cendekia Pendidikan Vol. 4 No. 1 (2026): Jurnal Pustaka Cendekia Pendidikan, Volume 4 Nomor 1, Mei - Agustus 2026
Publisher : PT PUSTAKA CENDEKIA GROUP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70292/jpcp.v4i1.308

Abstract

Prestasi belajar matematika siswa dipengaruhi oleh faktor internal dan eksternal yang saling berkaitan. Penelitian ini bertujuan untuk menganalisis: (1) hubungan fasilitas belajar dengan prestasi belajar matematika; (2) hubungan motivasi belajar dengan prestasi belajar matematika; dan (3) hubungan simultan fasilitas belajar dan motivasi belajar dengan prestasi belajar matematika siswa kelas VII SMP HKBP Sidikalang Tahun Ajaran 2021/2022. Penelitian menggunakan pendekatan kuantitatif dengan desain korelasional. Populasi berjumlah 120 siswa kelas VII, dengan sampel 89 siswa yang ditetapkan menggunakan rumus Slovin dan diambil melalui teknik simple random sampling. Data dikumpulkan melalui angket skala Likert (fasilitas belajar: 30 butir; motivasi belajar: 30 butir) dan dokumentasi nilai matematika. Uji instrumen meliputi validitas Product Moment Pearson dan reliabilitas Cronbach Alpha. Uji prasyarat mencakup uji normalitas Kolmogorov-Smirnov, uji linearitas, dan uji multikolinearitas. Analisis data menggunakan korelasi Pearson, regresi linear berganda, uji t, uji F, dan koefisien determinasi. Hasil penelitian menunjukkan: (1) terdapat hubungan positif dan signifikan antara fasilitas belajar dengan prestasi belajar matematika (r = 0,641; p < 0,05; KD = 41,1%); (2) terdapat hubungan positif dan signifikan antara motivasi belajar dengan prestasi belajar matematika (r = 0,673; p < 0,05; KD = 45,3%); dan (3) terdapat hubungan positif dan signifikan secara simultan antara fasilitas belajar dan motivasi belajar dengan prestasi belajar matematika (R = 0,724; R² = 0,524; F = 48,32; p < 0,05) dengan persamaan regresi Ŷ = 35,21 + 0,42X₁ + 0,53X₂. Temuan ini menegaskan bahwa semakin baik fasilitas belajar dan semakin tinggi motivasi belajar, maka semakin tinggi pula prestasi belajar matematika siswa.
Co-Authors Adi Suarman Situmorang, Adi Suarman Angelina Manik Anggun Anugrah Manurung Ansen Godang Bt. Sitompul April Hampego Silitonga Ardina Br Saragih Aryanda Nugraha Viory Simatupang Belsasar Sihombing Celine Inviolata Hutagalung Dortua Benjamin Pola Silitonga Dudes Manalu Elsa Gres Saragih Ernest Grace Ernita Br Lumban Tobing Erydo Ade Ray Siregar Exaudi Sirait, Debora Ferri Ojak Immanuel Pardede Fhingki Vanny Napitupulu Firman Pangaribuan Friska B. Siahaan Gayus Simarmata Herman . Herman Herman Herman Herman Injen Pardamean Buta-Butar Injen Pardamean Butar Butar Injen Pardamean Butar-Butar Jaya Tata Hardinata Jayadi Setia Oktafiana Jelli Sijabat Johannes P Nababan Junita Batubara Kasih Lestari Zega Kristin Y. S. Manik Leonita Maria E Manihuruk Lerista Permatasari Siringoringo Lilis Manalu, Andriono Mega Sri Fanni Bako nicomse nicomse Nilam Sari Noventri Simamora Ojak Immanuel Pardede, Ferri Peniel Sam Putra Sitorus Rektor Sianturi, Rektor Rick Hunter Simanungkalit, Rick Hunter Ruth Preccilya Situmorang Ryan Gabriel Heryzone Manurung Sam Putra Sitorus, Peniel Samuel Alex Lubis Santa Miralda Lumbantobing Sepriyana Sagala Sinaga, Christa Voni Roulina Sirait, Debora Sitio, Hetdy Sthepanie Turnip Surbakti Saragih, Reagan Vania Yocelin Sagala Vera Ningsi Situmeang Virda Natesya Voni Roulina Sinaga, Christa Winda C. Br. Manurung Yeni Sinaga Yoelisa Batsyeba Sinaga Yosua Wijaya Wardoyo Yuliana Nainggolan