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If you wish, you can proceed gradually, to analyse the matter. Let’s take an example. M...

If you wish, you can proceed gradually, to analyse the matter. Let’s take an example. Meanwhile, we apply the VFI, to find out its effectiveness, and even indispensability.

If you wish, you can proceed gradually, to analyse the matter. Let’s take an example. Meanwhile, we apply the VFI, to find out its effectiveness, and even indispensability.