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• Article 2026

  Portfolio optimization using cryptocurrency

  Raka Arjunaldi Pramana Putra, Mychelia Champaca

  19 Jan 2026 · DOI: 10.55942/pssj.v6i1.620

  233 Views

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  cryptocurrency portfolio optimization markowitz model mean variance optimization sharpe ratio
• Article 2026

  Perceptions of pre-service elementary teachers toward the use of Artificial Intelligence (AI) in science portfolio creation

  Edward Harefa

  28 Jan 2026 · DOI: 10.55942/pssj.v6i1.1422

  278 Views

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  Artificial intelligence perception science learning portfolio pre-service teacher
• Article

  Transhumanistic cybercrime analysis using a posthuman criminology approach to digital identity threats in artificial intelligence era

  Tegar Raffi Putra Jumantoro, Muhammad Kuttub Firdausy

  01 Sep 2025 · DOI: 10.55942/pssj.v5i9.558

  603 Views

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  post-human criminology digital identity algorithmic agency legal system theory
• Article

  The dynamics of the relationship between the Kotaagung Village government and the farmers group in the practice of Saemaul Undong values

  Azis Ahmad, Imam Mahmud

  18 Jul 2025 · DOI: 10.55942/pssj.v5i7.522

  379 Views

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  Saemaul Undong Farmer groups Village government Power relations Village development Local collaboration Food security
• Article

  The boomerang effect of the cassava floor price policy: An analysis of the impact of the governor of Lampung’s directive on the tapioca industry and farmers’ welfare

  Ulfa Umayasari, Goestyari Kurnia Amantha

  30 Jun 2025 · DOI: 10.55942/pssj.v5i6.451

  438 Views

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  price intervention cassava agricultural policy starch content Lampung