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Sadang Husain
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INDONESIA
Jurnal Fisika FLUX
ISSN : 1829796X     EISSN : 25411713     DOI : -
Core Subject : Science, Education,
Jurnal Fisika FLUX is a peer-reviewed, open access journal that publishes original research articles, review articles, as well as short communication in all areas of physics including applied physics, which includes: physics instrumentation and computation, biophysics, geophysics, physics materials, theoretical physics, and physics education. Journal use single peer reviewed to publish. This journal is published by Universitas Lambung Mangkurat Press. ISSN 1829-796X (print) and ISSN 2541-1713 (online) Jurnal Fisika FLUX is published twice a year. Articles will be peer reviewed first. Once ready to be published immediately on the current edition.
Arjuna Subject : -
Articles 555 Documents
Simulation of the Finite-Difference Time-Domain (FDTD) Method in 2-Dimensional Electromagnetic Wave Propagation in Absorption Media Muh Fachrul Latief; Idawati Supu
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 19, No 3 (2022): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2415.372 KB) | DOI: 10.20527/flux.v19i3.11931

Abstract

This research reviewed Maxwell’s equations and Numerical Discretization using the Finite Difference Time Dependent (FDTD) method. First, Maxwell’s equations are introduced in a linear dielectric medium for 1-dimensional and 2-dimensional configurations, which are built based on the polarization between Transverse-Magnetic (TM) and Transverse-Electric (TE). Then, it presented the frequency-dependent absorption boundary conditions for the electromagnetic field equations used in that configuration. In addition, the correlation between the variation of the grid with respect to the x-axis and y-axis, as well as the variation of the dielectric constant of the medium on the propagation of electromagnetic waves, has been studied in this paper. A numerical result provides an excellent accuration and approximation in establishing boundary conditions for wave spacing in adsorbed media at 1-dimensional and 2-dimensional configurations
Design of water turbidity measurement using Arduino Uno R3 on the Martapura River Mochammad Anshori; Nurma Sari; Amar Vijai Nasrulloh
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 19, No 3 (2022): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1666.443 KB) | DOI: 10.20527/flux.v19i3.12959

Abstract

Water is a very important daily need in human life. Water is needed for drinking, preparing food, washing and cleaning. The water used must be suitable for use with quality according to physical, biological and chemical parameters. The aim of this study is to design an instrument for water turbidity which is a one of physical parameter. Turbidity occurs due to the scattering of particles that affect the absorption of light rays in water, such as sediment. Feasible water has a turbidity value of 25 NTU. The tool for measuring water turbidity uses a turbidity sensor SKU: SEN0189 which has been integrated with the Arduino Uno R3 microcontroller and can store measurement results automatically through the Delphi 7.0 interface software in .xls format. This water turbidity measuring instrument can be applied with a smart water tool, so that the percentage value of the decrease in the level of turbidity of water that has been carried out by the filtration process can be known. The test results of the water turbidity measuring instrument showed that turbidity ≤452 NTU had a standard deviation value of ±2 NTU and turbidity ≥520 NTU had a standard deviation value of ±1. The implementation of a river water turbidity measuring instrument using a SKU:SEN0189 turbidity sensor has been carried out in Martapura river water with 3 different location points. The measurement results before filtration show that the highest turbidity value is 124 NTU at point 1, 130 NTU at point 2, and 189 NTU at point 3. In the measurement after filtration, the smallest turbidity value is 9 NTU at point 1, 9 NTU at point 2, and 13 NTU at point 3. This shows that after the filtration process of Martapura river water has been carried out with a smart water tool, Martapura river water can be used for sanitary hygiene purposes according to the water turbidity parameter with a value below the 25 NTU threshold.
Monitoring of River Estuary Turbidity using Satellite Image Analysis and Its Correlation to Rainfall (A Case Study of the Krueng River in Aceh, Indonesia) Abdulah Mujahid Hamdan; Muhammad Tri Fajar; Rafiza Mustaqin; Mulyadi Abdul Wahid; Rahmad Maulana; Muhammad Fadhil Zainuddin
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 19, No 3 (2022): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2962.347 KB) | DOI: 10.20527/flux.v19i3.14062

Abstract

Activities along the Krueng Aceh river such as port activities, fisheries, ship breeding, tourist attractions, market activities and settlements cause a lot of domestic waste in the environment around the river and affect river clarity and increase the concentration of turbidity. High turbidity in rivers can affect the entry of light into the waters because light has an important role in the photosynthesis process. The method of monitoring water quality can be done by remote sensing because it has several advantages such as being able to carry out measurements on a larger scale for a long time, relatively quickly, and reducing the amount of costs incurred. Monitoring the Krueng Aceh River is carried out using remote sensing technology using Sentinel-2 imagery. This study aims to obtain the value of the distribution of turbidity by analyzing satellite imagery and its correlation with rainfall, and to determine the value of the distribution of turbidity, Total Suspended Solid (TSS), Total Dissolved Solid (TDS), and Power of Hydrogen (pH) in the Krueng Aceh River. The results showed that sentinel-2 image analysis got the lowest turbidity on September 6, 2021, which was -0.992424, and the highest on October 5, 2019 which was 0.248641. The distribution of water quality is known to have the highest turbidity concentration obtained at sampling location point 1, which was 107.9 NTU. The highest concentration of TSS was found at sampling locations 1, 4, and 7, which was 400 mg/l. The highest TDS concentration was found at point location 1, which was 1,413 mg/l. The pH concentration at the Krueng Aceh River sampling location has met the quality standards set in PP No. 82 of 2021
Magnetic Resonance Imaging (MRI) Safety in Pregnant (A Literature Review) Ramacos Fardela; Suci Ramda Rena; Atika Maulida; Fiqi Diyona
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 19, No 3 (2022): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (521.631 KB) | DOI: 10.20527/flux.v19i3.14796

Abstract

Radiation is a beam of energy that comes from particles or photons. Based on the ability to ionize matter, radiation can be grouped into non-ionizing radiation and ionizing radiation. Ionizing radiation is radiation that can ionize the matter through which it passes. Ionizing radiation has proven useful in medicine. However, exposure to potential ionizing radiation can cause negative effects for health and heredity (genetic). Ionizing radiation also cannot be observed directly so a nuclear detector is needed as a radiation monitoring device. Medical imaging commonly used in pregnancy is Ultrasonography (USG) and Magnetic Resonance Imaging (MRI). MRI is one of the modalities in medical imaging that utilizes a magnetic field. The use of MRI during pregnancy is on the rise, because it has the ability to produce clear images of cross-sectional anatomy without ionizing radiation. Until now there has been no research that shows the dangers of using MRI for pregnancy. So that through this literature study it is hoped that the reader will be able to understand the available evidence regarding the safety of MRI during pregnancy. This literature study was carried out by the authors by collecting information or studies from previous researchers regarding the safety of using MRI in pregnancy and its effects on the fetus. In addition, the author also attaches some evidence stating that the use of MRI can be said to be safe for pregnancy, because it does not use ionizing radiation so there are minimal side effects.
Analysis of Mineral Characteristics of Leang Lonrong Cave Ornaments in The Pangkep Karst Area, South Sulawesi, Bantimurung Bulusaraung National Park Nur Rahmi MS; Muhammad Arsyad; Agus Susanto
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 19, No 3 (2022): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v19i3.14329

Abstract

Research has been carried out on the mineral content of caves in the Leang Lonrong Pangkep Karst Area with experimental research methods. The purposes of this study are to analyze the characteristics of Leang Lonrong Cave, explain the mineral content of the Leang Lonrong Cave ornaments, and show the presence of RRE elements contained in the Leang Lonrong Cave ornaments. The characteristic data of the cave was obtained from direct observations, and measurements in the Leang Lonrong cave in the form of cave dimension data, namely the length of the cave with a size of ±150 meters, the height of the mouth of the cave 1.91 meters and the length of the mouth of the cave 6.40 meters and the intensity of light in the cave obtained 0 lux with a temperature of 26˚ C and 88% humidity. The data were analyzed descriptively and qualitatively using match software, namely X-Ray Diffraction data obtained from sample characterization using X-Ray Diffraction tools on cave ornaments. Dominated by carbon elements marked with white ornaments, the analysis results were obtained. It is known that the mineral content in the cave ornament samples is impure Calcite derived from the dissolution of limestone in karst rocks. From the statement, it is known that each ornament contains Calcite. The results of the descriptive analysis in the form of temperature, humidity, light intensity, fauna and flora, and cave ornaments. The results of the descriptive study in the form of temperature, humidity, light intensity, fauna and flora, and cave ornaments. From the qualitative results obtained, the mineral content of Calcite is the most mineral constituent of cave ornaments, and received rare earth metal elements (RRE) in the minerals of each stalactite ornament in the form of elements Yb (ytterbium), Ce (cerium), and La (Lanthanide)
Analysis of Tc99m MDP Radiopharmaceuticals in the Spinal Areas of Breast Cancer Patients Desty Anggita Tunggadewi; Syefira Lupita Azmi; Budi Santosa
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 19, No 3 (2022): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v19i3.12900

Abstract

The aim of this study was to obtain doses in the spine of breast cancer patients. This dose is very important in pharmacy to determine the distribution of drugs in the body's organs, especially the spine. The data of this study came from the results of bone scintigraphy examinations which had known the value of the injection dose and the percentage of absorption in the spine. This research was conducted by simulating the biological half-life values for 3 hours, 4 hours, 5 hours, 6 hours, and 7 hours to find the total half-life which will produce a total decay constant that will be used in calculating spinal dose. The results obtained were the lowest mean dose in the spinal 0.680 ± 0.160 mCi when the decay constant had the highest value (biological half-life 3 hours) and the largest mean dose in the spinal 1.011 ± 0.238 mCi when the decay constant had the lowest value (biological half-life 7 hours). In the spine, the thoracic region is the area with the highest dose because it is located closest to the breast organs (breast cancer) so it will experience the highest damage/metastasis. Then the Tc99m MDP radiopharmaceutical absorbed into the thoracic region will be higher. By simulating the biological half-life, it is hoped that we can find the exact biological half-life for the absorbed dose
Identification of Landslide-Prone Areas in Sanggau Regency, West Kalimantan using GIS and Resistivity Method Radhitya Perdhana; Nurhasanah Nurhasanah; Riza Adriat
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 20, No 1 (2023): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v20i1.12449

Abstract

Currently, the weather in Indonesia has been greatly affected by climate change. This is evidenced by extreme weather events in early 2020 which are predicted to occur more frequently in Indonesia. Bad weather in the form of high rainfall will potentially cause hydrometeorological disasters such as floods and landslides. To anticipate the occurrence of landslides that have the potential to disrupt regional development, it is important to conduct research to map landslide-prone areas in the province of West Kalimantan. This research is in line with UNTAN's strategic research plan to contribute to disaster management and climate change. This research combines overlay and measurement methods with geoelectric methods. The overlay method is used as a method to map landslide susceptibility based on scoring calculations from land parameters. The mapping is expected to produce a map of the landslide-prone zone which can then be studied further. Assessment of landslide potential through slip plane analysis using resistivity geoelectric method. From the mapping and direct observation, it is proved that the high landslide susceptibility values correlate with the landslide occurrence in Sabang Merah, Sanggau. Based on the resistivity measurement there found the potential landslide slip surface that is connected with the dip of rock layers in the area.
Alternative Energy of Biomass Briquettes from Alaban Wood and Rubber Seed Shells with Rubber Sap Adhesive and Dyeing Used Cooking Oil Ninis Hadi Haryanti; Nova Annisa; Suryajaya Suryajaya; Surini Surini
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 20, No 1 (2023): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v20i1.15026

Abstract

The increasing demand for energy and fossil fuels has caused a shortage of energy, so renewable alternative energy is needed to help solve this problem. Biomass waste has significant potential as a briquette-making material. The production of briquettes as an alternative energy source made from biomass from Alaban wood charcoal and rubber seed shells is one solution. The research was conducted to determine the characteristics of briquettes with differences in composition variations, including moisture content, ash content, and caloric value in accordance with SNI 01-6235-2000 standards. Alaban wood charcoal and rubber seed shells that have been carbonized and made into powder were then sieved with a 60 mesh sieve and then weighed and mixed with a rubber adhesive, and then molded with a pressure of 200 kg/cm2. The composition variations used for Alaban wood charcoal and rubber seed shells are 100%:0%; 0%:100%; 70%:30%; 60%:40%; 50%:50%; 40%:60%; 30%:70% with 9% rubber adhesive in the total weight for each composition and dipped in used cooking oil for 3 minutes. The characteristics of the resulting briquettes are moisture content of 0.69%-2.06%; ash content of 3.34%-4.91%; and caloric value of 7.863kcal/g-8.042kcal/g. The results of this research as a whole have met the standards. The more rubber seed shells that are added, the lower the moisture content, the higher the ash content, and the caloric value. Briquettes with a composition of 30% Alaban wood charcoal and 70% rubber seed shells produce a caloric value of 7.953 kcal/g, moisture content of 0.75%, and ash content of 4.19%.
Neutron Generated during Proton Bombardment in Water Molecule Gusti Atika Urfa; Nurma Sari; Amar Vijai Nasrulloh
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 20, No 1 (2023): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v20i1.14684

Abstract

Proton therapy is a treatment modality which can deliver dose precisely to cancer tumor in comparison to photon therapy, However, study about the biological effect of proton therapy are not well known. In this study, simulation of proton bombardment with energy 110 MeV to water is conducted using Geant4 software. The selection of water as the object of proton bombardment due to majority of human body is consisted of water. Water molecule in this simulation is a cube shaped with 10 x 10 x 10 cmand surrounded by PMMA material with 0.5 cm thickness. From the simulation results, it can be seen that <2% neutrons particle are formed due to the interaction of proton particles with water material. Small dose of neutron can be dangerous for body because it has high biological effectiveness and thus even a small absorbed dose might cause negative side effects in the patient.
Analysis of Skin Protection from the Dangers of Sun Exposure Using Color Variations and Types of Cotton Fabrics Norliani Norliani; Mislan Mislan; Pratiwi Sri Wardani; Erlinda Ratnasari Putri
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 20, No 1 (2023): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v20i1.15172

Abstract

Cotton fabric is a comfortable clothing material to wear in tropical climates. In addition to the comfort aspect, cotton cloth is expected to be able to protect the skin from the dangers of sun exposure. This research was conducted with the aim of knowing the optimum amount of protection produced by cotton cloth, determining the type and color of cotton cloth that is most effectively used as a protector, and knowing the SPF (sun protection factor) value category based on the type and color of cotton cloth. This study used three types of cotton cloth, each consisting of four colors, as well as a Digital Environment Multimeter which was used to measure the intensity of sunlight in units of lux. The protection value is obtained by comparing the intensity of sunlight without a cotton cloth protector (lux) with the intensity of sunlight using a cotton cloth protector (lux). The results obtained show that the most optimum protection value is found in black toyobo cotton cloth with an SPF value of 54.4 and a transmittance of 1.8%. The cotton fabrics that provided the most effective protection based on type and color were black and blue toyobo, medina and Japanese cotton fabrics. Based on the SPF value obtained, it can be seen that black and blue toyobo cotton fabrics, and black madinah cotton fabrics have a very good protection category. The black and blue Japanese cotton fabrics, as well as the blue medina type, have a good protection category, while the orange Toyobo cotton fabrics have a sufficient protection category.

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