ปริมา  ๖๓  ฉบับที่ ๖๙๕  พฤษภาคม – สิงหาคม ๒๕๖๑                                           

Volume 63 Number 695 May – August 2018

Published : 2018-09-29

Published: 2019-07-02

Full Issue

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Research Article

Sum of Factorial Series

Montakarn Petapirak, Sompong Chuysurichay

1 - 8

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Digraphs Arising from the Relation $a^4 \equiv b \pmod{n}$

Ratinan Boonklurb, Thunpischa Yodkaew

9 - 18

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Academic Article

Matrix on Investment Analysis

Petcharat Rattanawong, Kritsana Neammanee

19 - 30

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General Article

Ramanujan : Prodigy Autodidact

Jinnadit Laorpaksin, Ratinan Boonklurb

31 - 36

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