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Contact Name
Sadang Husain
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sadanghusain@yahoo.com
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jurnalflux@ulm.ac.id
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Kota banjarmasin,
Kalimantan selatan
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 570 Documents
Crystal Structure Parameter Analysis of Reduced Graphene Oxide (rGO) from Coconut Shell Charcoal Hikmah, Utiya; Azizah, Aghea Tahta Wahyu; Hastuti, Erna
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 21, No 2 (2024): 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.v21i2.17135

Abstract

In this research, reduced graphene oxide (rGO) material from coconut shell charcoal was synthesized using the modified Hummer method. The reduction process of Graphene Oxide (GO) to rGO uses the reducing agent L-Ascorbic Acid (LAA) and is assisted by microwave radiation. The samples obtained were then characterized using XRD to analyze the crystal structure parameters of the rGO samples obtained. Based on the XRD results, the data obtained was then analyzed using the Scherrer and modified Scherrer equations to determine the crystal size in the sample. In addition, the Williamson-Hall equation is also used to analyze crystal size and lattice strain. This article also analyzes XRD data using the Rietveld method using Rietica software. The output from the Rietica software obtained lattice parameter values a ≠ b ≠ c and angle α = β = γ = 90° which indicates an orthorhombic crystal lattice structure. In the refinement process, Rietica's software affects the suitability parameters in the form of R and GOF indicator values. The sample obtained was also measured for the electrical conductivity value of the rGO sample using an LCR meter.
Temporal-Spatial Variations Analysis of Surface Temperature in Kalimantan Region for The Period of 2010 - 2020 Fitrianingtyas, Rahmawati; Palupi, Indriati Retno
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 21, No 1 (2024): 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.v21i1.17507

Abstract

Surface temperature information is important to study because it affects other climate parameters and has an impact on various sectors. This study aims to analyze the temporal and spatial variations of maximum surface temperature on Kalimantan Region during the period 2010 to 2020. The data used is Surface Maximum Temperature (SMT) in the form of a 0.5o x 0.5o grid from the Climate Prediction Center (CPC) NOAA PCL. The results of the temporal analysis showed that the highest monthly SMT values occurred in May (32.00o C) and September (31.75o C). While the lowest monthly SMT values were found in January (30.88o C) and July (31.40o C).  The results of the annual SMT trend analysis show that the surface temperature in the Kalimantan Region has increased at an average rate of 0.03°C per year. This value is higher than the increase in global surface temperature (~0.02°C per year). Based on the results of spatial analysis, it was known that the distribution of SMT on Kalimantan Region tends to be stable in the range of 25o C to 35o C throughout the year. Spatial analysis of SMT in 2011 showed that low values (25o - 31o C) dominated South Kalimantan Province , while high values (33°C - 35°C) dominated West Kalimantan Province. The results of the 2019 SMT spatial analysis revealed a similar pattern to 2011. However, there was a significant increase in temperature compared to 2011, especially in the high SMT values observed in West Kalimantan and East Kalimantan Provinces.
Determining Bouncepoints in the South of Kalimantan Island for SS Wave Phase Fahruddin Fahruddin; Gusti Aldy; Muhammad Rasyid Ridho; Ibrahim Ibrahim; Nurlina Nurlina; Sudarningsih Sudarningsih; Mustaid Yusuf; Syamsurijal Rasimeng; La Ode Safiuddin
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 20, No 3 (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.v20i3.17280

Abstract

The bouncepoints or reflection point of a seismic wave is very important to determine a research area that utilizes SS precursors data. In this study the data used has criteria, to obtain good data. Hence, the research results are also good, while the criteria are: the depth of the earthquake source is limited to less than 75 Km to reduce interference with precursor waves that arrive earlier (sSdiff) and it is easier to determine the bouncepoint. The earthquake source is more than 5.8 Mw to get a good SS phase signal-to-noise ratio (SNR). The best distance between the source and the receiving station is ≥ 1000 to avoid interference with waves reflected on the surface (Ss670s and Ss400s) and ≤ 1650 to avoid interference with ScSScS precursors. The location of this study is in the south of the island of Kalimantan (15 bouncepoints) and there are 3 points data whose bouncepoints is outside the study area. Earthquake data obtained from IRIS (Incorporated Research Institutions for Seismology). The research data for earthquake centers are in Australia, New Zealand and others, for earthquake measuring stations in Europe and Asia.
Study of Silica Sinter Mineral Content, Surface Temperature, and Fluid Type of Waya Makawa Hot Spring Ploly Village, Makian Island, North Maluku Ningrum, Rohima Wahyu; Taib, Suryani; Aswan, Marwis
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 21, No 2 (2024): 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.v21i2.17557

Abstract

ABSTRACT − Waya Makawa hot spring is the only hot spring in Ploly Village, Makian Island, North Maluku. Hot water utilization is still in the form of hot spring tourism and has not been explored further. The surface temperature of the Waya Makawa hot spring is quite high, so it is interesting to research because the temperature is the dominant parameter of geothermal areas. This study aimed to determine the mineral content of sintered silica and its relationship to surface temperature, as well as to determine the type of fluid (hot water) of Waya Makawa. The research method used is a quantitative method with mud samples to determine the content of sintered silica tested using the XRF method. A thermocouple temperature sensor measures The hot water sample for its surface temperature. Water samples were taken using a random sampling method to determine the content of chemical elements from hot springs and then analyzed using trilinear diagrams. The mineral content test results obtained in the Waya Makawa mud sample have a fairly high silica mineral content. Point 1 has a silica mineral content of 54.49%, while at point 2 it is 57.84%. At the location of point 1, the average surface temperature obtained is around 37.6 o C, while at point 2 it is around 40.6 o C. The relationship between surface temperature and mineral content in Waya Makawa hot water is very significant, the higher the temperature, the greater the silica mineral content at that point. The results of the chemical analysis show that the Waya Makawa hot spring is an alkaline chloride fluid type and is immature water, as well as an indication of a high permeable zone (fault). This hot water domination system is located in low relief, has been altered with silica characteristics, has silica sinter reserves, and occurs in many tectonic fault systems. 
Photometric Observations of Short Period Variable Stars: EH Librae Djumari, Sulthan Julieri; Malasan, Hakim Luthfi; Wibowo, Ridlo Wahyudi; Wahidin, Alka Budi
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 21, No 1 (2024): 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.v21i1.17865

Abstract

EH Librae [BD-00 2911; αJ2000 = 14h58m55.92s; δJ2000 = -0°56'53.01'] is a pulsating variable δ Scuti stars which is located in the constellation of Libra and has a period of 0.0884129 days. The aim of this research is to obtain and analyze the light curve, deduce the period, and derive the physical parameters of EH Librae. Observations were made using the ITERA Robotic Telescope 0.25m Ritchey-Cretian with CCD ATIK 383L+ on the BVR band. Aperture photometry was performed to measure the flux of EH Librae. Light curve was constructed using the differential photometry method, and the determination of the period was carried out using the Lomb – Scargle method. Secondary data from the Transiting Exoplanet Survey Satellite (TESS) is used as an addition to derive the physical parameters of EH Librae. The results of this study are the light curve of EH Librae on the BVR band with Magnitude, V = 9.506 – 10.071 ± 0.002. Using the index color  = 0.271, we derived the   = (7.7 ± 0.4) 103 K. O – C diagram shows no significant changes in the period. Derivation of physical parameters are  = 2.12 ;  = 1.4 ; and  = 3.93 cgs was carried out using asteroseismology method with  = 846  and  = 51.9 
Penyelesaian Persamaan Schrodinger Tidak Bergantung Waktu Dengan Metode Finite Difference I Gusti Agung Widagda; I Nengah Artawan; Wayan Gede Suharta; I Gde Antha Kasmawan
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 21, No 3 (2024): 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.v21i3.19289

Abstract

The solution of time-independent Schrodinger equation (TISE) has been studied by several researchers. In this research, a TISE solution is found by using the finite difference method which is implemented in computer program code by using the Python language. TISE in the form of a second order differential equation is solved by using the finite difference method. In order to normalize the resulting wave function it is necessary to divide it by square root of the integral of the squared wave function. The integral method used is the Riemann method. In order to prove quantitatively that the TISE solution of the finite difference method is the same as or close to that of the analytical method, it is carried out by using linear regression and the z test. The research results show that the linear regression results from the two methods are nearly close. This is able to be seen from the values of  gradient (m), intercept (c) and coefficient of determination (R2) which are close to ideal values, namely, 1, 0 and 1, respectively. In addition, from the z test it is concluded that the null hypothesis H0 is accepted, which means the solution of finite difference method is equal to analytical solution by a confidence level of 95 percent.
Morphological Study of Surface Magnetic Minerals, Case Study of North Banjarmasin Settlement Areas Sudarningsih Sudarningsih; Fahruddin Fahruddin; Tetti Novalina Manik; Dzikri Dzikri
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 21, No 3 (2024): 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.v21i3.20532

Abstract

We have conducted research to identify the morphology of magnetic minerals from the land in the Banjarmasin regional settlement area. We used scanning electron microscopy and energy dispersive X-ray spectroscopy (SEM EDS) on the soil sample to look at the shape of its magnetic minerals. In nature, magnetic minerals can indicate the presence of heavy metals. The shape of a magnetic mineral can reveal its origin in either the litogenic or anthropogenic processes. There were mostly pseudo-single domain grains (3.29–10 m) and multidomain grains (> 10–134.69 m) in the study area. The multidomain grains came in the shapes of sperules, irregulars, angles, and prisms. These results indicate that in the residential land location there are magnetic mineral grains originating from litogenic and anthropogenic processes.
Spatiotemporal Analysis of B-Value at Mount Slamet (2014–2023) Ika Maulita; Sugito Sugito; Lusia Silfia Pulo Boli
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 21, No 3 (2024): 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.v21i3.20718

Abstract

This study investigates the spatial and temporal distribution of b-values at Mount Slamet, one of Indonesia’s most active volcanoes, during its eruption activities from 2014 to 2023. The primary objective is to explore how variations in b-values correlate with stress conditions and volcanic activity, providing insights into eruption forecasting. Seismic data were sourced from USGS, BMKG, and local networks and analyzed using ZMAP and MATLAB to calculate b-values, assess magnitude completeness, and perform spatial and temporal analyses. Results reveal notable spatial variability: higher b-values in the northern and northeastern regions indicate lower stress levels, while lower b-values in the southwestern region suggest elevated stress concentrations. These spatial patterns align with geological features, highlighting zones of intense tectonic and magmatic interactions. Temporally, b-values consistently declined before major eruptions in 2017 and 2020, reflecting increased stress and larger seismic events. Post-eruption, b-values rose, indicating stress reduction and stabilization of the volcanic system. These findings underscore the value of b-value monitoring as an effective tool for eruption forecasting. The observed spatial and temporal trends offer critical insights into Mount Slamet’s evolving stress conditions, aiding disaster preparedness and risk mitigation strategies for local communities. The study highlights the importance of continuous seismic monitoring combined with advanced analytical techniques to enhance the predictive capabilities of volcanic hazard assessments. Future research should integrate additional geophysical parameters, refine predictive models, and extend analyses to similar volcanic settings to improve global understanding of volcanic processes and enhance early warning systems.
Analysis of Hypocenter Position of Bengkulu Earthquake on April 15, 2023 Using 2D and 3D Grid Search Method Based on USGS Data Firdos Bahar Sidik; Savira Zahrul Khumairo; Farizki Budi Pangestu; Triya Illmi Sakinah; Muhamad Raihan Putra Febrian; Risaldi Fauzan Laksono; Jihan Syafina Nasution
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 21, No 3 (2024): 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.v21i3.21112

Abstract

Earthquakes are natural events that can have serious impacts on human life and the environment. This study aims to improve the accuracy of earthquake hypocenter determination by applying the 2D dan 3D Grid Search method to seismic data recorded by three stations in the Bengkulu area, Indonesia. The analysis process begins with P and S wave phase picking using seismograv software, followed by origin time determination using the Wadati diagram method. The 2D dan 3D Grid Search method was used to calculate the position of the earthquake hypocenter by dividing the search area into grids and searching for the smallest RMS value. The results of the relocation calculation obtained the hypocenter point of the earthquake at latitude 4.50°N, longitude 76.0340°W with a depth of 60 km. Although there are differences with USGS data, the level of agreement of the calculation results is relatively high. This research contributes to further understanding of earthquakes in the study area and can be the basis for improving disaster mitigation.
Studi Penumbuhan Grafena pada Temperatur Rendah Menggunakan Metode Hotwire-Plasma Enhanced Chemical Vapor Deposition Jasruddin Jasruddin; Andi Momang Yusuf; Sulistiawaty Sulistiawaty
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 21, No 3 (2024): 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.v21i3.19279

Abstract

Dalam penelitian ini, telah dilakukan penumbuhan grafena dengan menggunakan metode Hotwire-Plasma Enhanced Chemical Vapor Deposition (HW-PECVD). Metode ini merupakan metode kombinasi antara metode PECVD konvensional dan metode CVD termal dengan menambahkan elemen hot-wire. Plasma dibangkitkan dengan menggunakan frekuensi radio pada spektrum Very High Frequency (VHF) sebesar 70 MHz. Sampel grafena ditumbuhkan di atas substrat kaca SiO2 yang telah dilapisi lapisan katalis nikel dengan temperatur penumbuhan 300°C. Grafena yang dihasilkan dianalisis dengan menggunakan spektroskopi Raman. Spektrum Raman sampel menunjukkan bahwa sampel yang dihasilkan telah mengandung struktur grafitik yang ditunjukkan oleh keberadaan pita G yang tajam, disertai dengan pita D yang menunjukkan bahwa sampel tersebut juga mengandung sejumlah cacat pada struktur grafitiknya. Sementara itu, pita 2D yang tampak dalam spektra Raman masih relatif lemah yang memberi indikasi kualitas sampel yang buruk, mengandung banyak cacat, dan berukuran nanokristalin. Walaupun demikian, hasil ini menunjukkan adanya potensi besar untuk dapat menumbuhkan grafena pada temperatur rendah melalui metode HW-PECVD yang digunakan melalui optimasi parameter-parameter penumbuhan lebih lanjut seperti tekanan penumbuhan dan laju alir gas sumber termasuk mengoptimasi ketebalan lapisan katalis nikelnya.

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