The phrase "a further indicator" is correct and usable in written English.
It can be used when you want to point out an additional sign or piece of evidence that supports a particular conclusion or observation.
Example: "The increase in sales figures serves as a further indicator of the company's growth potential."
Alternatives: "an additional sign" or "a supplementary indication".
A further indicator looks at how much the poorest 20% of households are spending on food compared with other items.
A further indicator of quality treatment is having reliable, valid measurement systems in place to track patients' response to treatment.
Manchester United were the only club in the top 10 who did not participate in the Champions League last season, a further indicator of the club's financial strength.
The official death toll stands at 832 and this is a further indicator that the number of casualties has risen overnight.
The arrival of Michalak for the largely ineffectual James O'Connor, with Cooper switching to full-back, was a further indicator of home disquiet and a second sweet drop-goal from Ford briefly put Bath in front for a third time.
A further indicator of Lincoln's distrust of Pinkerton's professionalism was his subsequent rejection of Pinkerton's offer to serve as the Union's intelligence chief a few months later.
It's an further indicator of the lack of consensus about truth-making and grounding that even other philosophers who are willing to take both these notions seriously and conceive of them as constitutively related, e.g., Cameron, find it "natural", as he puts it (2010: 184), to define grounding in terms of truth-making rather than the other way around as Schaffer proposes.
A further composite indicator also included the indicators relevant only to women in (P1-P13 plus P16-P19).
The fact that these sites all have different domain names but share identical IP addresses indicates that they are making use of shared web hosting, which is a cost effective way of making websites available online and is a further strong indicator of a relationship between these sites.
As a further workload indicator, we therefore derived the product of all three factors: The number of potential candidate products × the average number of uses for which alternatives are potentially available × the average number of alternative products that is available for each of these uses.
As a further functional indicator of potential cerebellar damage in the Cortex+Nucleus and Control groups, CR latency-to-peak and magnitude were examined throughout Phases 1 4 (see Figure 7).
