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All Journal Dharmawangsa: International Journal of the Social Sciences, Education and Humanitis Jurnal Riset Ilmiah
Febriadi, Angga
Unknown Affiliation
Humanities Economics, Econometrics & Finance Education Law, Crime, Criminology & Criminal Justice Public Health Social Sciences Other

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THE IMPACT OF ENVIRONMENTAL POLLUTION IN THE THOUSAND ISLANDS Hutagaol, Kerlima; Pratama, Anugrah Ramadha; Sirodz, Fazry Alwy; Ramdan, Purnama; Febriadi, Angga; Situmorang, Tiodorus
Dharmawangsa: International Journal of the Social Sciences, Education and Humanitis Vol 6, No 3 (2025): Social Sciences, Education and Humanities
Publisher : Universitas Dharmawangsa Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46576/ijsseh.v6i3.7424

Abstract

The Thousand Islands, a key marine tourism destination in Indonesia, faces serious threats from environmental pollution. Plastic waste, oil spills, and unsustainable tourism activities damage the marine ecosystem, human health, and the socio-economic well-being of the local community. This study aims to examine the sources of pollution, its impacts, and mitigation efforts implemented in the Thousand Islands. The research method utilized a literature 1the primary pollution comes from microplastics, oil spills, and illegal tourism and fishing activities. This environmental damage reduces marine productivity, poses health risks, and fuels social inequality. Mitigation efforts need to be strengthened through plastic reduction policies, conservation education, and integrated waste management.
PENGARUH PENERAPAN METODE KONSTRUKSI MODULAR TERHADAP EFISIENSI WAKTU DAN BIAYA DALAM PROYEK KONSTRUKSI BANGUNAN Manurung, Edison Hatoguan; Febriadi, Angga
SINERGI : Jurnal Riset Ilmiah Vol. 3 No. 1 (2026): SINERGI : Jurnal Riset Ilmiah, January 2026
Publisher : Lembaga Pendidikan dan Penelitian Manggala Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62335/sinergi.v3i1.2315

Abstract

The modular construction method is an innovation in the construction industry aimed at increasing project efficiency. This study aims to analyze the effect of implementing the modular construction method on time and cost efficiency compared to conventional construction methods. The study used a quantitative descriptive approach, using a case study of the construction of an office building in Grabag District, Purworejo Regency. Data were obtained from cost planning documents (RAB), project scheduling, and relevant supporting literature. The cost analysis showed that the modular method required a cost of Rp3,646,018,620.52, an 18.11% increase compared to the conventional method of Rp3,086,929,413.11. However, in terms of time, the modular method was able to shorten the construction duration from 150 days to 87 days, a 42% increase. The results showed that the modular method was superior in terms of time efficiency, while the conventional method was more economical in terms of cost. The choice of construction method should be adjusted to project priorities.
Co-Authors Manurung, Edison Hatoguan Nurwijayanti Pratama, Anugrah Ramadha Ramdan, Purnama Sirodz, Fazry Alwy Situmorang, Tiodorus