gray or grey literature

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
gray or grey literature	1.98	0.7	5850	90	23
gray	0.87	0.5	7403	56	4
or	1.47	0.7	9864	76	2
grey	0.65	0.7	4413	79	4
literature	0.18	0.1	3675	98	10

Keyword	CPC	PCC	Volume	Score
gray or grey literature	1.88	0.8	4838	69
grey literature or gray literature	1.42	0.4	5152	32
definition of gray literature	0.74	1	8473	63
what does grey literature mean	0.4	0.6	3557	59
definition of grey literature	1.85	0.1	298	39
what counts as grey literature	1.69	0.7	2857	68
meaning of grey literature	0.77	0.6	7543	45
types of grey literature	0.09	0.4	7218	99
grey literature vs white literature	0.76	0.2	585	92
grey literature vs academic literature	0.57	0.6	6122	1
grey literature in literature reviews	0.58	0.3	1186	16
what is gray literature in research	0.16	0.9	8725	66
what is grey literature in research	0.36	0.7	5360	93
white and gray literature	0.82	0.8	4518	40
which is an example of gray literature	0.49	0.6	2733	56
how to find gray literature	0.22	0.2	1948	6
how to find grey literature	0.59	0.4	3726	6
examples of grey literature	0.12	0.6	8082	96
importance of grey literature	1.32	0.7	6109	30