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Sponsored AI AM CLAUDE, A Beginner's Guide: Learn the basics of working with AI AI AM CLAUDE, A Beginner's Guide: Learn the basics of working with AI

Author

T. Irawan

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Open access Sep 2026

Financial Performance and Financial Flexibility in Mining Service Companies (A Case Study of PT XYZ)

Background: The rapid expansion of Indonesia’s coal mining industry requires mining service companies to maintain strong financial performance and financial flexibility to support investment and sustainable growth. Corporate transformation may improve operational performance but can also increase capital expenditure an...

Didit Pramadi, N. Achsani, T. Irawan · 0 citations
Open access Sep 2026

Study on the Application of Markowitz’s Portfolio Selection Theory in Upstream Oil and Gas Investment Decision

Background: … Objective: Modern portfolio theory aims to maximize investment returns while managing the amount of risk taken, represented by variance, across different investment options. By regularly monitoring and adjusting their portfolio, investors can better align their investments with their specific financial g...

I. Novikri, N. Achsani, Roy Sembel et al. · 0 citations

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