Garuda - Garba Rujukan Digital

p-Index From 2021 - 2026

3.049

P-Index

This Author published in this journals

All Journal Bulletin of Scientific Contribution : Geology IJOG : Indonesian Journal on Geoscience Jurnal Berkala Ilmu Perpustakaan dan Informasi Jurnal RISET Geologi dan Pertambangan Dharmakarya : Jurnal Aplikasi Ipteks Untuk Masyarakat Jurnal Geosaintek Jurnal Ilmiah Dinamika Rekayasa (DINAREK) Journal of Geoscience, Engineering, Environment, and Technology Jurnal Geologi dan Sumberdaya Mineral (Journal of Geology and Mineral Resources) JLBG (Jurnal Lingkungan dan Bencana Geologi) (Journal of Environment and Geological Hazards) Spektra: Jurnal Fisika dan Aplikasinya Buletin Sumber Daya Geologi Jurnal Geosains dan Teknologi Kumawula: Jurnal Pengabdian Kepada Masyarakat Prosiding Temu Profesi Tahunan PERHAPI Dinamika Lingkungan Indonesia Jurnal Geominerba Jurnal Geologi dan Sumberdaya Mineral (Journal of Geology and Mineral Resources) Journal of Geosciences and Applied Geology BACA: Jurnal Dokumentasi dan Informasi Jurnal Geosaintek

Zufialdi Zakaria

Fakultas Teknik Geologi, Universitas Padjadjaran

Author-ID : 525619

Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Physics Public Health Social Sciences Other

Published : 78 Documents Claim Missing Document

Claim Missing Document

Articles

1 2 3 4 5

Potensi korosivitas pada tanah endapan dataran banjir sungai Citarum di Karawang, Jawa Barat Yanwar Yusup Rukmana; Muhamad Ridwan; Zufialdi Zakaria; Dicky Muslim; Nadhirah Seraphine
Dinamika Lingkungan Indonesia Vol 7, No 2 (2020)
Publisher : Universitas Riau

Corrosion is the biggest problem for equipment that utilised metal, including infrastructure. Corrosion is degradation of metal quality due to the chemical reaction of a metal with the surrounding environment, including soil. Important indicators that contribute to the classification of the rate of corrosivity in soils are water content, pH, types of minerals, soil resistivity values and other chemical-physical parameters. The research area is in Anggadita Village, Klari District, Karawang Regency, West Java Province. Drilling and sampling locations are approximately 300 meters from the Citarum river. The article aimed to investigate between physical and chemical characteristics (soil texture, type of resistivity, pH) of weathered sediments of the Citarum river flood plain to the classification of soil corrosivity. Soil classification in the study area is fine grained and classified into silt with high plasticity (MH-ML) and clay with high plasticity (CH). The results of the analysis of the distribution of potential soil corrosivity in the study area indicate that the level of soil corrosivity is at a high level of corrosive to very high corrosive

ZONASI PERGERAKAN TANAH DI DESA PANYUTRAN DAN SEKITARNYA, KECAMATAN PADAHERANG, KABUPATEN PANGANDARAN, PROVINSI JAWA BARAT Jhon Pengarapen Barus; Nana Sulaksana; Zufialdi Zakaria
JURNAL GEOMINERBA (JURNAL GEOLOGI, MINERAL DAN BATUBARA) Vol 7 No 1 (2022): Jurnal Geominerba 2022
Publisher : PPSDM Geominerba

The research area located in Panyutran Village and its surroundings are areas whose surface is covered by Tertiary-aged rocks. In the study area, the constituent rock types are volcanic breccia, tuff and limestone. The method of studio analysis approach with remote sensing is the lineament analisys, lineament structure, slope, rock strength, mountain front sinuosity (Smf), and the ratio of the width of the valley floor to the height of the valley (Vf). The results of the analysis of these aspects indicate that the research area has an area with high or unstable ground movement susceptibility 2.3%, medium tectonic activity vulnerability 86.3% and low or stable ground movement vulnerability 11.4%. The results of the morphotectonic analysis show that the research area has medium tectonic activity.

PEMANFAATAN BAN BEKAS UNTUK PERKUATAN STRUKTUR JALAN PADA PELEBARAN JALAN SOROWAKO – MALILI: SEBUAH KAJIAN TENTANG KESTABILAN GEOTEKNIK Wiyatno Haryanto; Nendi Rohaendi; Ridwan Banda; Zufialdi Zakaria
JURNAL GEOMINERBA (JURNAL GEOLOGI, MINERAL DAN BATUBARA) Vol 4 No 1 (2019): Jurnal Geominerba 2019
Publisher : PPSDM Geominerba

PT Vale Indonesia Tbk is a subsidiary of Vale S.A. (Brazil) under Vale Base Metal group (Canada) located at Sorowako village, East Luwu regency, South Sulawesi province, in Indonesia, a foreign investment company in mining industry that running to explore, mine, process, and produce nickel in mate as an intermediate product. This paper is intended to introduce the “reusereduce-recycle” (3R) idea as an environmentally friendly concept by means of utilizing the scrap tires as alternative construction material for geotechnical engineering purposes. In terms of mining operational, PT Vale Indonesia Tbk consumes prefabricated tires that required for heavy equipment such as hauling trucks and wheel-loaders. Tire consumption for the mining operational is fluctuated ranging of 350–600 ea. per annum depending on some technical factors in example pavement condition, road geometry, braking frequency, payloads, et cetera. The large number of the current tire consumption is remaining a big problem in terms of availability of disposal (waste dump) to disposing the scrap tires. So far, the scrap tires are disposed merely into the waste dump as if a less valuable waste material. There is an idea to use scrap tires as construction materials. Geotechnical stability of the retaining structure made of the scrap tires are analyzed to obtain safety factor and reliable of the structure to stabilize the widening road in durable manner. The result of the research is that the utilization of scrap tires has fulfilled safety factor for long term about 1.46 without load seismic and 1.04 with load seismic.

Mineral Tanah Lempung Formasi Batuasih Berdasarkan Data SEM (Scanning Electron Microscope) dan XRD (X-Ray Diffractometer) Pada Lereng Citatah KM-23, Padalarang, Jawa Barat Lukman Muhammad Asri; Zufialdi Zakaria; Agung Mulyo
Jurnal Geosains dan Teknologi Vol 6, No 1 (2023): Maret 2023
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jgt.6.1.2023.53-63

Lereng penelitian yang berada di daerah Citatah KM-23 memberikan gambaran kehadiran indikasi-indikasi gerakan tanah karena batuan penyusun pada lereng daerah penelitian berupa tanah lempung lapukan Formasi Batuasih yang menopang Batugamping Formasi Rajamandala. Lereng penelitian yang memiliki beda nilai secara fisik dan susunan kimiawi jenis mineral terhadap Formasi Rajamandala menyebabkan adanya perubahan struktur pada tanah lempung. Penelitian mineral dari 4 sampel tanah lempung Formasi Batuasih bertujuan untuk memberi gambaran jenis, struktur dan perawakan mineral dari kenampakan mikroskopis. Metode penelitian menggunakan data SEM dan XRD yang dianalisis sehingga memberi informasi detail mineral pada sampel tanah lempung lereng Citatah KM-23 baik visual mineral secara 3 dimensi agar mengetahui ciri setiap jenis mineral dan jumlah persentase jenis mineral yang didapat. Hasil penelitian terhadap 4 sampel menunjukkan mineral kuarsa, kaolinit dan muskovit yang teridentifikasi hampir disetiap sampel dimana kuarsa memiliki perawakan berbentuk tumpukan lembaran yang lebar seperti daun dengan bagian pinggir atau sisinya berbentuk sedikit meruncing. Kaolinit terlihat memiliki bentuk butiran yang sebagian membentuk lembaran yang menyerupai hexagonal dan muskovit dijumpai dalam bentuk lembaran yang hadir secara terpisah dan tidak saling terakumulasi satu sama lain. Jika mengacu berdasarkan mineral lempung jenis kaolinit, maka kerusakan yang dialami lereng tidak memberi dampak yang besar.

POLA KELURUSAN TOPOGRAFI DI WILAYAH MAJALENGKA, JAWA BARAT Zufialdi Zakaria
Jurnal Geologi dan Sumberdaya Mineral Vol. 15 No. 2 (2014): Jurnal Geologi dan Sumberdaya Mineral
Publisher : Pusat Survei Geologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33332/jgsm.geologi.v15i2.64

Penelitian ini mencakup wilayah Kabupaten Majalengka, Sumedang, dan Kuningan, Jawa Barat. Penelitian bertujuan untuk mengetahui peran tektonik serta menguji pengaruh tektonik aktif terhadap kelurusan morfologi di wilayah tersebut. Hasil uji beda dengan T-test pada semua pola kelurusan topografi di batuan Tersier dan batuan Kuarter menunjukkan tidak terdapatnya perbedaan yang signifikan dengan thit= - 0,301, dan ttabel =1,971 (a=0.05). Tektonik aktif ditunjukkan oleh kesamaan pola kelurusan pada dua batuan yang berbeda umur, yaitu pada batuan berumur Kuarter dan Tersier. Kedua batuan sama-sama terkena proses deformasi, dan sama-sama mengalami pengangkatan. Jika pola kelurusan dibagi secara khusus menjadi empat pola, yaitu Pola Meratus, Pola Jawa, Pola Sumatera dan Pola Sunda, maka hasil uji beda kelurusan topografi pada batuan Tersier dan Kuarter (T-test, dengan a=5%) adalah sebagai berikut: Kelurusan topografi dari pola Meratus menunjukkan perbedaan nyata, dengan thit=-3,117, dan ttabel =2,011 (a =0,05). Kelurusan topografi berpola Jawa, menunjukkan tidak terdapat perbedaan yang signifikan dengan thit=-0,980, dan ttabel =2,024 (a=0.05). Kelurusan topografi berpola Sumatera menunjukkan perbedaan nyata, dengan thit=2,567, dan ttabel =1,983 (a=0.05). Kelurusan topografi berpola Sunda tidak menunjukkan perbedaan yang signifikan, dengan thit=0,473, dan ttabel =1,998 (a=0.05). Tektonik yang menyebabkan perbedaan pada Pola Meratus dan Pola Sumatera adalah tektonik masakini (neotektonik) yang diperlihatkan melalui reaktivasi sesar-sesar yang ada, terutama melalui keberadaan sesar aktif misalnya Sesar Baribis.Kata kunci: kelurusan topografi, neotektonik.

SOSIALISASI PENGELOLAAN SAMPAH DI RANCAEKEK KULON, KABUPATEN BANDUNG, JAWA BARAT Sulaksana, Nana; Zakaria, Zufialdi; Raditya Rendra, Pradnya Paramarta; Sulastri, Murni
Kumawula: Jurnal Pengabdian Kepada Masyarakat Vol 7, No 2 (2024): Kumawula: Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kumawula.v7i2.45957

Rancaekek Kulon merupakan salah satu desa di Kecamatan Rancaekek yang memiliki permasalahan sampah. Permasalahan sampah yang terjadi disebabkan oleh rendahnya kesadaran masyarakat dan terbatasnya Tempat Pembuangan Sementara (TPS) di wilayah setempat. Hal tersebut mengakibatkan di sebagian pingir jalan desa dapat ditemukan tumpukan sampah yang tidak dikelola dengan baik. Selain itu, terbatasnya TPS juga menyebabkan masyarakat memilih untuk membakar sampah rumah tangga secara mandiri. Oleh karena itu, kegiatan sosialisasi terkait pengelolaan sampah perlu dilakukan untuk mendorong dan memotivasi masyarakat lebih peduli terhadap kondisi lingkungan serta mendorong pemerintah daerah setempat untuk membantu dalam penyediaan TPS yang memadai. Sosialisasi dilakukan untuk menghimbau masyarakat hidup bersih serta menjaga lingkungan setempat dengan tidak membuang sampah sembarangan serta melakukan pengelolaan sampah secara baik melalui proses pemilahan dan pemilihan sebelum sampah diangkut 302 Kumawula : Jurnal Pengabdian Kepada Masyarakat 2024 menuju TPS. Hasil kegiatan menunjukkan bahwa pada dasarnya masyarakat ingin hidup bersih dan sehat. Namun demikian, kurangnya kesadaran serta keterbatasan TPS menjadi kendala yang perlu diselesaikan. Oleh karena itu, sosialisasi ini bermanfaat sebagai salah satu upaya untuk mendorong masyarakat dan pemerintah setempat untuk bersama-sama saling membantu menjaga lingkungan agar tercipta lingkungan yang bersih dan sehat.

SLOPE STABILITY ANALYSIS USING FINITE ELEMENT METHOD (FEM) IN WARA OPEN PIT COAL MINE, PT ADARO INDONESIA, TABALONG, SOUTH KALIMANTAN Sihotang, Josua Washington; Bakhtiar, Taufiq; Khoirullah, Nur; Sophian, Raden Irvan; Zakaria, Zufialdi
Journal of Geological Sciences and Applied Geology Vol 3, No 3 (2019): Journal of Geological Sciences and Applied Geology
Publisher : Faculty of Geological Engineering, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/gsag.v3i3.25667

The stability of slope is impacted by Rock Mass Rating, material properties, and slope geometry. Furthermore, the slope stability analysis was needed to know the slope stability condition. This research aims to know the Strength Reduction Factor (SRF) value by using Finite Element Method (FEM) using Hu=1 and Hu=Auto. The geotechnical mapping that is Rock Mass Rating (RMR) and Measured Section were done to get the Geological Strength Index (GSI) and profile of layer rocks in highwall slope SCT_J1 and SCT_J2. From the FEM analysis, actual slope SCT_J1 has the SRF=1.25 with Hu=1 and SRF=1.4 with Hu=Auto. SCT_J2 has SRF=1.21 with Hu=1 and SRF=1.3 with Hu=Auto. From the slope stability analysis, SCT_J1 and SCT_J2 were classified into stable slope due to the SRF value higher than 1.2.

Analysis of Physical and Mechanical Properties of Andesite Lava Geulis Mountain Area, Jatinangor, West Java Abdullah, Fajar; Sophian, Raden Irvan; Khoirullah, Nur; Zakaria, Zufialdi; Asykarulloh, Abdul Wahid; Taufiq, Mochamad Muslim; Shafira, Nisa; Putri, Revena Denia
Journal of Geological Sciences and Applied Geology Vol 5, No 1 (2021): Journal of Geological Science and Applied Geology
Publisher : Faculty of Geological Engineering, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/gsag.v5i1.34851

Jatinangor is an area composed of material from volcanic activity, one of the results of volcanic activity is andesite rock. The purpose of this research is to provide information related to the physical and mechanical properties of the lava rock in the Gunung Geulis area so that if there is construction work or rock utilization there is already information about the characteristics of the rock. The method used in this study is a laboratory experiment by conducting tests on 9 selected rock samples. The results of laboratory testing can be concluded the rock in the research area is andesite rocks and have rock physical properties namely Natural density (1.5 – 1.6 gr/cc), Saturated density (1.6 – 1.7 g/cc), Dry Density (1.5 – 1.6 g/cc), Bulk Saturated Surface Dry (SSD) Specific Gravity (2.3 – 2.4), Apparent Specific Gravity (2.5 – 2.7), absorption (3 – 5.9%), Natural moisture content (0.6 – 2.3%), Porosity (4.9 – 9.4%) and the mechanical properties of the rock, namely the compressive strength of the rock, ranged from 33,099 – 85,096 Mpa. Based on the results and analysis, the mechanical properties of rocks, namely the compressive strength of rocks in the study area, have varying values and varied physical properties of rocks. Physical and mechanical properties of rocks that are correlated based on linear correlation are the compressive strength of rocks with absorption, Natural moisture content, and porosity. These parameters will show the relationship that can affect the compressive strength of rocks. So that when using rock in construction work, mining, the use of rock needs to pay attention to the compressive strength or mechanical properties and physical properties of the rock.

Liquefaction Potential based on Earthquake History in Sanana Region, Sula Island Regency, North Maluku, Indonesia Pajrin, Ulfia Sari; Zakaria, Zufialdi; Sophian, Raden Irvan; Khoirullah, Nur; Mubarak, Aziez; Basuki, Jodi Prakoso
Journal of Geological Sciences and Applied Geology Vol 3, No 1 (2019): Journal of Geological Sciences and Applied Geology
Publisher : Faculty of Geological Engineering, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/gsag.v3i1.21947

Sula Islands is a region in Maluku Province that is very vulnerable to earthquakes because it is located on an active seismic line. One of the disasters that often accompanies earthquakes is liquefaction. Sandy soil in a saturated condition will lose its strength when an earthquake occurs, thus endangering the building above it. The aim of the study was to determine seismicity and estimate the liquefaction potential of the earthquake history and CPT test in the Sanana region and its surroundings. The method in this study uses a "simplified procedure" method for evaluating liquefaction resistance of soils. 2 main parameters were sought in this study, CSR obtained based on tectonic conditions and a history of seismicity and CRR obtained from the results of CPT testing. The results showed that seismicity in the Sanana region was sourced from Sula-Sorong active fault activity with a history of the greatest magnitude of 8.1 and 7.7. As for the calculation results from CPT data, the Sanana area has the potential for liquefaction of sand medium material at a depth of 5-12 m for earthquakes with magnitude 7.5 and 4 -12 m in magnitude 7.7 and 8.1. The potential for liquefaction in this area is caused by the type of saturated medium sand material and this location which is close to the active fault activity of Sula-Sorong. Therefore, it is necessary to evaluate the potential for liquefaction in planning, building and developing infrastructure in earthquake-prone areas so that disasters of liquefaction can be prevented.

Shallow Bearing Capacity in Cilengkrang, Bandung, West Java, Indonesia Khoirullah, Nur; Adiwijaya, Annisa Ayungingtyas Pratiwi; Sophian, Irvan; Mulyo, Agung; Muslim, Dicky; Zakaria, Zufialdi
Journal of Geological Sciences and Applied Geology Vol 3, No 3 (2019): Journal of Geological Sciences and Applied Geology
Publisher : Faculty of Geological Engineering, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/gsag.v3i3.26226

Cilengkrang is located on the eastern side of Bandung City, West Java Indonesia. This area is surrounded by the district of Cimenyan, Cijambe, Cileunyi, and Ujung Berung. The population growth in Cilengkrang area has experienced 1.8% over the last six years as evidenced by the quantity of new housing complexes being built. Due the limitations on available land the development of housing complex is predicted settled in Cilengkrang District. This paper is aimed to determine the characteristic of shallow bearing capacity foundation, as an important factor on constructing a housing complex. To analyze shallow bearing capacity, the soil mechanics data is tested in the laboratory. These samples are taken in 14 sites distribute randomly. Based on the field mapping, the soil that covers the research area is dominated by fine-grained soil as the residual and transported soil product of young and old volcanic products. Based on Universal Classification of Soil (USCS), the high plasticity silt (MH) is dominating this area than the low plasticity silt (ML) and high plasticity clay (CH). Based on shallow bearing capacity foundation data, the allowable bearing capacity in this area ranging from 19.42 to 70 Ton/m2 on square footing. The circular footing values ranging from 19.35 to 69.93 Ton/m2, and continuous footing values ranging from 15.47 to 52.77 Ton/m2.

Co-Authors abdullah, Fajar Abu Abdillah Ali, Abu Abdillah Achmad Djumarma Wirakusumah Adiwijaya, Annisa Ayungingtyas Pratiwi Adjat Sudradjat Adriansyah, Yan Agung Mulyo Agus Wiramsya Oscar Alpionisa, Salsabila Nur Ambar Yoganingrum Andriani, Tati Andriani, Tati Anggoro Tri Mursito Anggoro Tri Mursito APRILIAN, YOGA Arie Afriadi Asykarulloh, Abdul Wahid Aton Patonah Bakhtiar, Taufiq Bambang Sugiarto Basuki, Jodi Prakoso Boy Yoseph Cahya Sunan Sakti Syah Alam Bustomi, Zhafran Muhammad Asyam Chaniago, Aulia Eka P S Chen, Reynara Davin Dicky Muslim Dinata, Muhammad Nasheer Ramdan Dwi Purnomo Edi Tri - Haryanto, Edi Tri - Edi Tri Haryanto Edi Tri Haryanto -, Edi Tri Haryanto Eko Tri Sumarnadi Emi Sukiyah Emy Sukiyah Ersyari, Jodistriawan Euis Tintin Yuningsih Febri Hirnawan -, Febri Hirnawan Firmansyah, M. Nizar Geni - Dipatunggoro, Geni - Geni Dipatunggoro -, Geni Dipatunggoro Gilang Perwira Adi Hendarmawan Hendarmawan Heri Nurohman Heriwaseso, Anjar Herryal Zoelkarnain Anwar Heryadi Rachmat Imam Santosa Indra Permanajati, Indra Irvan Sophian Irvan Sophian -, Irvan Sophian Irvan Sophian, Irvan Ismawan - Ismawan Ismawan, Ismawan Iyan Haryanto Jakah Jakah Jakah Jakah Jakah, Jakah Jhon Pengarapen Barus Jodistriawan Ersyari Johanes Hutabarat Jumhari Jumhari Khoirullah, Nur Kristiawan, Yohandi Lukman Muhammad Asri Luthfan H. Jihadi -, Luthfan H. Jihadi Luthfan H. Jihadi, Luthfan H. Luthfan Harisan Jihadi, Luthfan Harisan M Sapari Dwi Hadian M. Bey Anural -, M. Bey Anural MANIK, VITO ARISTO Mochamad Sapari Dwi Hadian Mubarak, Aziez Muhamad Ridwan Muhammad Bey Anural, Muhammad Bey Muhammad Kurniawan Alfadli Mursito, Anggoro Nadhirah Seraphine Nadhirah Seraphine Nana Sulaksana Nana Sulaksana Nana Sulaksana Nendi rohaendi NINGRUM, WIWIN JUNITA Noorika Retno Widuri Pajrin, Ulfia Sari Pradnya Paramarta Raditya Rendra Putra, Rafino Kurnia Putri, Revena Denia Rachmad Setijadi Raden Irvan Sophian Rahayu Robiana, Rahayu Rahmi, Nisa Shafira Muthia Ramsof, Rani Amalia Retnoningtyas, Widya Ika Reynara Davin Chen Ridwan Banda Rina Devnita Rizky Narendra Utomo, Rizky Narendra Rukmana, Yanwar Yusup Rulina Rachmawati Sabila, Zahra Syahida Seraphine, Nadhirah Seru, Imanuel Seru, Imanuel Shafira, Nisa Siahaan, Yakub Sidarto Sidarto Sihotang, Josua Washington Sondi Kuswaryan Sulastri, Murni Sumarnadi, Eko Sumaryono Sumaryono Tati Andriani Taufiq, Mochamad Muslim Tono Hartono, Tono Tupan Tupan Ujang Hidayat Tanuwiria Ulhaque, Thaha Rizal Vijaya Isnaniawardhani Wicaksana, Kintan Adelia Arum Wicaksono, Danny Wiguna, Purwa Wiyatno Haryanto Yanwar Yusup Rukmana Yanwar Yusup Rukmana Yogi Prianda, Yogi Yohanes Tan, Yohanes Yuda, Himmes Fitra Yudhicara Yudhicara Yusi Firmansyah, Yusi Yusuf, Muhammad Farhan Yuyun Yuniardi

Title

Found 78 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 78 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 78 Documents
Search