Keyword Analysis & Research: how to find issn number of article

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
how to find issn number of article	0.12	0.7	9580	49	34
how	0.18	0.1	9244	55	3
to	1.22	0.4	2990	76	2
find	0.94	0.1	9288	30	4
issn	1.81	0.3	82	53	4
number	1.81	0.4	2948	17	6
of	0.38	0.1	2641	33	2
article	1.85	0.3	6885	35	7

Keyword	CPC	PCC	Volume	Score
how to find issn number of article	1.89	0.5	5745	19