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Article analysis:

This article provides an in-depth analysis of two samples of manganite perovskite type La0.8-x·xNa0.2-x·xMnO3 (with x = 0 and 0.1), studying their physical properties around their ferromagnetic (FM) - paramagnetic (PM) phase transition using various techniques such as Arrott-Noakes plot, Kouvel–Fisher and Widom scaling methods, as well as correlating their critical and magnetocaloric behaviors to determine an exponent n giving information on their magnetic state.

The article is generally reliable in its reporting, providing detailed descriptions of each technique used to study the samples' physical properties, as well as citing relevant sources throughout its text to support its claims about them being related to a 3D Ising or tricritical mean field model for each sample respectively, which were then further confirmed by Widom scaling relation and universal scaling hypothesis tests conducted on them both.

However, there are some potential biases present in this article that should be noted when considering its trustworthiness; for example, it does not provide any counterarguments or alternative explanations for why these samples may have exhibited certain behaviors during testing other than those already mentioned within its text; nor does it explore any possible risks associated with conducting such experiments on these materials or discuss any potential implications that could arise from doing so if they were not properly handled or monitored during testing procedures; additionally, it does not present both